These NGOs have "called on the Slovak government to refute the use of the 'incest-argument' to justify segregated education for Romani children in Slovakia". Refute? How can they exactly "refute" it? It was a result of surveys done by social scientists who have studied that question. Only a study that seems more reliable and happens to lead to the opposite result could "refute" the use but there's none at this moment.

There are no studies to refute what has been found, and the studies we do have, no matter how old, confirm it is the case.

Governments and learning institutions aren't very keen for using resources to commission more studies into it, as it might just confirm what existing studies have shown and make them look like Nazis regardless if the data is factual.

Cousin marriage and inbreeding is harmful to genetics and consequentially harmful to society, yet it is still allowed here, how it hasn't been banned yet is shocking.