So you are saying something that has existed throughout all periods of time, in every society isn't a fact of life? Also, speaking about racism particularly is

So you are saying something that has existed throughout all periods of time, in every society isn't a fact of life? Also, speaking about racism particularly is something that makes very little sense historically. Racism has largely not been a problem because most societies weren't (and still aren't) multi-racial. The biggest issue has been religion and, more recently, class. Both of these distinctions are arbitrary and should highlight that discrimination, not racism, is the problem and that is a fact of life. You will get discriminated against if you are disabled, if you have a Southern accent, if you are too short, if you are too tall, if you are too fat, if you aren't fat enough, etc. On and on forever. This is constant, it is human nature. Btw, it is also worth saying that we largely have approaches that are effective. The only thing that history is really clear about is that constantly going over the past, seeking revenge/retribution, etc. doesn't work (many countries have gone down this route with power-sharing agreements due to religious/tribal conflict, it doesn't work). Equality means equality for all. Everyone is different. We all have to live with that. When you start from the basis that some people have an advantage/disadvantage because of their identity, the only way that ends is segregation and power-sharing agreements (usually after some period of terrorism/internal civil conflict). Everyone benefits from fairness, it isn't a race/religious/class issue.