Coming from an Asian, and white people wonder why blacks hate them?

Running around on horses in masks, hanging people for their skin color. Castrating them. Killing thousands.. One of the sickest and most pathetic acts I've ever seen. Of course I had heard about this in books, but this is truly pathetic. This stuff causes generational tension. I've seen it with the Koreans and Japanese from the Japanese soldiers raping and killing people in WW2..I know white people today have nothing to do with what their ancestors did, but you should be aware of WHY their is animosity. Everybody should do whatever they can to accept other races and be tolerant of the differences. I'm sure some white people can't stand being compared to their ancestors, but get over it. It happens to Asians all the time(Mao, Kim Jong, Imperial Army etc)