Yes other groups also are beaten, imprisoned, denied loans and lose jobs. Regarding slavery and lynchings: you do know that hardly any lynchings have been conducted in the last 40 years? You do know that Nigeria is in the top five countries in the world with the practice of slavery? Oh but that doesn’t matter, because it’s not “racism,” or “prejudice.”
Of course racism is an ugly thing, but when blacks make bigoted statements like “all whites are racist… because…” it doesn’t help to heal race relations or bridge the divide. It’s as divisive as the hate we hear from white nationalists.