You've gotta be kidding.  Let me simplify a bit for you:

If slavery is bad, why pray tell are the Muzzies still selling people?  Why is that ok?  And for a bonus score, why is Islam now a popular lifestyle choice among a certain percentage of American blacks?

Nazis are National Socialists.  The only socialists killing people these days are Bernie supporters.  Or are National Socialists worse than socialists in your world.  For extra credit, why?

Final question:  If racism is bad (you mentioned it at least twice), why is BLM and La Raza (The Race) good?  Cheers -