Whites and Asians go to government schools as well, but you don't see this kind of behavior from them.
Could there be some other factor that better explains it?
Actually, "whites" do engage in this sort of behavior, quite often in fact.
Ask your local constabulary how many such incidents they respond to where it's white folks being beaten, doing the beating, and standing aside watching the beating. The fact that they don't do it at MacDonald's or other public places very often is the only real difference.
Asians, I don't know about although there's more of it in some predominantly Asian neighborhoods than you apparently think.
It may not be statistically as common, but it's rampent. By the standards of only thirty years ago it's absolutely amazing how many women are beaten these days. Regularly beaten at that. Teaching several generations that there is no reason to respect gender differences and that all mortality is relative is bearing this sort of fruit across the board.
You’re not allowed to say why.
Actually, most of that particular culture has become trash culture, just as predictible as their voting record. Lockstep same approach to life.