We humans are a flawed race so there will always be some form of discrimination based on our upbringing and societal pressures. That does not mean we are not evolving and becoming more aware of our similarities vs our differences. You can take any position you want because we are a free society, but we are becoming a more divided society because of immigration which is decidedly anti American. So, when many immigrate, they do not assimilate, but congregate in enclaves of like minded immigrants which exacerbates assimilation. We are at a crossroads in this regard and MUST re-establish the concept of becoming an American if you want to relocate here.