By 'bringing up this chart' I'm referring more broadly to people in this thread talking about how black people have lower entry scores compared to white/asian peers lol
I'm just gonna copy and link what someone else said the last time this came up in /r/premed but the tldr is "Scores aren't everything, and especially not in medicine."
AMCAS and the AAMC have the benefit of the entire country on their minds, and right now their goal is to give greater healthcare options to the rural, the underserved, and the underrepresented to achieve balance of medical representation. It has nothing to do with "being threatened." It has everything to do with representing the number of applicants accepted from each ethnicity to their respective portions. Unfortunately this means that AMCAS is sacrificing individual success to achieve a (sort of) greater good, but even this depends on one definition of success. Is the person who made a 4.0 and 40 MCAT with an enormous amount of resources (affluent parents and/or those who encourage their children to do well in school) really more "successful" than someone who has fewer resources (parents and culture who actually discourage education, especially in "ghetto" african american communities) who made a 3.7 and a 34? Studies have been done that show that while extreme academic success doesn't have a greater correlation to job success than those who were somewhat less successful (quantified by the amount of lawsuits, complaints, and repeat patients), it absolutely does correlate to financial gains later in life.
If you were the AAMC, told by government healthcare department and agencies that you need to solve the healthcare imbalance, who would you choose--an overrepresented minority or an underrepresented one (despite the fact that the underrepresented one isn't as academically high scoring, but still just as qualified to be a doctor)?
So, a disproportionately large number of asian americans apply to technical and high paying schools jobs, among them medical schools. Asian Americans compose 5.6% of the american population, and yet represent nearly a full effing quarter of those who apply to medical school (I'm counting all applicants of asian descent). White americans, on the other hand, count for roughly 5/8 of the applicant pool and compose about that much of the american population. And yet, asian american acceptance rates across the board very nearly match that of the white population, ~42% compared to ~45% (asians and whites respectively).
Asian americans are definitely overrepresented in the medical community, and quite frankly their acceptance rates could be much lower to match their representative population. The goal of AAMC and AMCAS is to create a representative pool of doctors to the population in the hopes that they'll go back to serve their respective communities.