Of course my anecdotes could just be flukes or I could be misinterpreting the quality of various candidates. But given what we know about undergrad admissions, it's not a stretch to imagine the same thing in med school. It's just that med school acceptance is much more impactful than undergrad.
The beauty of commenting on HN is that you don't need to provide data or citations, you can just write down anecdotes (made up or not), and you'll be upvoted by those who like what you say. And you can feel good about it, because the community thinks it has an intellectual side, engaging in deep conversations about a variety of topics.
You didn't finish your thought. The beauty of HN isn't just that. Because immediately after doing that, someone jumps out and points out that you didn't write a research paper backing up your comment on the internet. Thanks for keeping the HN culture alive and strong.
As an aside, if you're genuinely curious about this subject, there has been a lot written about it, a lot of research done into it, and a clear bias has been show against certain minorities which tend to outperform other populations (asians, jews, etc.). If I actually cared about convincing you, I would cite a few, but I don't actually care what you think and this is the internet ... so please use Google.
We just don't know if they would have been accepted in an equivalent system without these alleged discriminatory policies, because gaining a medical school offer depends on such a myriad of other factors.