>>1391871I think the people you have seen being unkind towards black people may have been posters who also go on /pol/, where certain theories about race and genetics are very popular.
I see English isn't your first language, but do you know the words "correlation" and "causation" and how they relate? Basically, two things that are correlative happen at the same time, and something causative makes another thing happen. A classic example of the difference is that murder rates in large cities increase when ice cream sales increase. This isn't because people go out for ice cream after shooting each other, it's because violent crime and ice cream sales both increase during the summer. Summer is the causative source for those two correlating effects.
Basically some people think genetic factors like strength aggression and intelligence cause black people to commit more crime and do more poorly in schools and things, but some people think this is bad correlation, especially since we don't totally understand how genes interact and influence us and it's pretty universally accepted that genes don't totally control personality traits like aggression or intelligence. Some of them clearly influence some of these things but we can't separate that out from social factors that might influence people-someone will become smarter growing up in a household that values education, for example.
It's more complicated because in America you can't argue about this in public at all, which is why so many people get worked up about it here. You would be seen as a very bad person even for asking "Why do black people commit more crime?" by some people.
I don't know about evolutionary biology and race because I don't care about it, so I can't give you those arguments, but someone will sooner or later. I live in a city with a lot of black people and I don't have trouble with anyone because I know how to stay out of trouble and defend myself. (2/2)