I insist it is cultural not "racial" however. And about the rest: agree after you change "races" with "cultures". Then it has PERFECT sense. If black person assimilate or if some arab assimilate = much less problems. https://www.ted.com/talks/daryl_davis_why_i_as_a_black_man_attend_kkk_rallies
What Darryl and his KKK "friend" doesn't understanded: Darryl was well assimilated African American. Racism is pointless indeed. It is not about race,it is all about culture. https://www.imdb.com/title/tt0302819/ Comedy so fiction,but guess what would happen if white person would be raised by SubSaharans :P
I insist it is cultural not "racial" however. And about the rest: agree after you change "races" with "cultures". Then it has PERFECT sense. If black person assimilate or if some arab assimilate = much less problems.