James Watson is a brilliant scientist who puts the truth ahead of petty politics.
Mixedrace children suffer from more health problems http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1448064/
Racemixing leads to outbreeding depression & pairings of non-complementary traits.
A massively well-funded study of over 100,000 schoolchildren found that “Adolescents who identify themselves as mixed race are at higher health and behavior risk than those of 1 race.” Indeed, even when controlling for education, socioeconomic status, and other factors, there is an across-the board higher rate of health risks amongst mixed race adolescents than mono-racial adolescents. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1448064/
One study found that White-Asian mixes had a 2x higher rate of being “diagnosed with a psychological disorder, such as anxiety, depression or substance abuse.” http://www.eurekalert.org/pub_releases/2008-08/uoc--baa081108.php
A study on Black-White mixes in agreement found that ”When it comes to engaging in risky/anti-social adolescent behavior, however, mixed race adolescents are stark outliers compared to both blacks and whites.” This holds true despite being raised in similar environments to mono-racial children. http://www.msu.edu/~renn/RHE-_mixed_race.pdf
Often race-deniers and cultural Marxists will bring up Haldane’s rule, arguing that since races can mix and create fertile offspring, the genetic distance is not too great. Haldane’s rule is “when in the offspring of two different animal races one sex is absent, rare, or sterile, that sex is the heterogametic [XY] sex.” http://www.nature.com/scitable/topicpage/haldane-s-rule-the-heterogametic-sex-1144
Indeed, although Black-White mixes are not sterile and males are not absent, males (the heterogametic sex) are more rare than females. http://www.jstor.org/pss/1537084
The argument regarding Haldane’s rule is also meaningless because different species in the animal kingdom can breed and still produce fertile offspring. The wolf (Canis lupus) and the dog (Canis lupus familiaris), the coyote (Canis latrans), and the common jackal (Canis aureus) are separate species yet can all interbreed and produce fertile offspring. http://www.jstor.org/discover/10.2307/3671304?uid=3739600&uid=2&uid=4&uid=3739256&sid=47699085472247
Two species of orangutan (Pongo abellii from Sumatra and Pongo pygmaeus from Borneo) can interbreed despite having different chromosomal numbers. http://www.nytimes.com/1995/02/28/science/orangutan-hybrid-bred-to-save-species-now-seen-as-pollutant.html?pagewanted=all&src=pm
The common chimpanzee (Pan troglodytes) and the bonobo (Pan paniscus) and many species of birds, such as the pintail (Anas acuta) and the mallard (Anas platyrhynchos), can interbreed as well. http://www.sciencedaily.com/releases/2007/04/070420104723.htm http://birdaz.com/blog/2011/02/24/mallards-the-weird-and-the-wonderful/
The gibbon and the siamang can also interbreed to produce a hybrid http://www.ncbi.nlm.nih.gov/pubmed/451603 http://www.ncbi.nlm.nih.gov/pubmed/1060807
Some species that aren’t even in the same genus can interbreed. http://aob.oxfordjournals.org/content/74/2/111.full.pdf
Black Americans are a hybrid race of around 22% White ancestry http://genomebiology.com/content/10/12/r141
This 22% ancestry is the cause of multiple negative health effects due to genetic incompatibility. Indeed, consistent with Haldane’s rule, unmixed Blacks from Africa and White Americans do not have the same rate of birth problems that hybrid American Blacks have: “In 2005, the mortality rate for black infants was 4.4 times higher than that of white infants… African women who come to the United States and have babies experience the same low rate of infant deaths as white American mothers.” http://t1nyurl.com/6tr9e6t (docs.google)
“Indiscriminate interbreeding between distinct forms, whether ‘species’ or markedly different races, is not generally beneficial. The defect may show in a change in the sex-ratio of the offspring, probably caused by the early abortion of members of one sex, generally the male in the case of mammals.” http://www.amazon.com/Race-John-R-Baker/dp/0936396040
LTA4H, or “leukotriene A4 hydrolase” is found on chromosome 17. An allele of this gene increases the risk of heart attack (the #1 cause of death in America) in Blacks by more than 250%, but only 16% in Whites. The 30% of Whites with this allele have counteracting genes, while the 6% of Black Americans who obtained it through race mixing do not. http://www.ncbi.nlm.nih.gov/pubmed/16282974
The average rate of success for mixed race couples is around half that of same race couples, 0.127 compared to 0.213. http://www.jstor.org/stable/4145377
There is evidence that the more similar the two people are, the happier their marriage tends to be. https://www.sciencedirect.com/science/article/pii/019188699190057I
A study in Iceland showed that 3rd cousin marriages are the most fertile and successful. Suggesting that mating within one's ethnic/racial group would be more beneficial than outside of one's ethnic/racial group. http://www.sciencemag.org/content/319/5864/813.abstract
One study showed that people tend to find their own face when morphed into the opposite sex most attractive, even when he/she doesn't know it's his own face, strongly suggesting that people typically prefer those who look like themselves, in other words their own racial/ethnic group. http://www.psyc.nott.ac.uk/research/vision/jwp/papers/pentonvoak1999.pdf
Hybrid vigor (heterosis) does not seem to apply to humans as we are already very heterozygous, at 0.776 [http://mbe.oxfordjournals.org/content/14/7/707.full.pdf] Compared to dogs for example at 0.401. [http://www.eebweb.arizona.edu/Courses/Ecol406R_506R/Garcia-Moreno1996-Wolf.pdf]
Although some argue that race mixing "averages out" traits and since average faces are considered more attractive [http://cs.brown.edu/courses/cs143/2009/lecture13.pdf] then mixed race offspring are more attractive.
However this is fallacious as it assumes we are designed for perfect symmetry, when in fact the magnitude of asymmetry is the correct measurement and this random component fulctuates, also called "fluctuating asymmetry" - so more honestly a lower level of asymmetry correlates with increased attractiveness, not symmetry. http://beheco.oxfordjournals.org/content/15/5/864.abstract
But does increased heterozygosity cause lower asymmetry? A meta analysis of 118 datasets in 14 studies showed a very weak inverse correlation between the two, showing that increased heterozygosity has no beneficial effect on symmetry or asymmetry http://www.nature.com/hdy/journal/v83/n2/full/6885550a.html
One study on the craniofacial morphology in White-Amerindian mixed race individuals found that over half of the 52 shape variables deviated from the mathematical average completely shattering the above argument. http://majorityrights.com/images/uploads/spanish.indian.pdf
The neurotransmitter oxytocin "makes people more co-operative, benevolent, loyal, generous and trusting of others. It is involved in the parent-child bond - new mothers and fathers have raised levels of oxytocin. Production also increases when people hug and when they have sex and, recent research suggests, when they receive psychological warmth." However, oxytocin has been alleged to "foster racism." http://www.guardian.co.uk/technology/2011/jan/30/bright-ideas-oxytocin-hormone-racism
The study found that "intergroup bias that fuels prejudice, xenophobia, and intergroup violence… Which maybe modulated by brain oxytocin." This suggests that the instinctual desire to pursue the interests of one's own ethnic group to further ensure the existence of one's people is linked to racial bias, coinciding with the observation that diversity is a weakness, not a strength. http://www.pnas.org/content/early/2011/01/06/1015316108
One study found that during the menstrual cycle when women have a higher likeihood of conception, racial bias is increased, especially when the likeihood of sexual intercourse was increased; "increased conception risk was positively associated with several measures of race bias. This association was particularly strong when perceived vulnerability to sexual coercion was high."
Although egalitarians suggest that only a racist would consider race when it comes to reproduction and mate choice, this study observed a general, innate tendency to prefer one's own race especially when most likely to be impregnated. http://www.cdnresearch.net/pubs/private/racebias.pdf
Race Is A Social Construct? The Immune System: How Important Is Race?
"If Nick Glasgow were white, he would have a nearly 90 percent chance of finding a matching bone marrow donor who could cure his leukemia."
The reason that mixed-heritage patients are so hard to match can be found in the immune system. Different races have developed certain proteins, or markers, that are part of the body's natural defenses. These markers help the immune system determine which cells are foreign and should be rejected.
Are cells racist? A match between two people who share more genetically in common significantly reduces the risk of the donor and recipient cells attacking each other. (READ: cells from people of two different races will attack and fight each other as though they are a virus)
The more people of different backgrounds who produce offspring = the more types that are harder to match. Multiracial patients have uncommon profiles and since there can be many possible racial and ethnic combinations in multiracial societies, finding a match can still be extremely difficult. http://m.phys.org/_news162659550.html
Race Is A Social Construct? The Immune System: How Important Is Race?
"If Nick Glasgow were white, he would have a nearly 90 percent chance of finding a matching bone marrow donor who could cure his leukemia."