The US enacted a law banning Chinese.. The state I live in (Oregon) explicit banned blacks in the constitution [0]. San Francisco was ready to mob and burn down Chinatown... "Black Wall Street" in Tusla, OK was burned down by a mob.. [1]
I did not want to get into a tit for tat comparison between oppression but I would implore anyone who is interested to really do their research on race in America.
[0]: https://www.washingtonpost.com/news/retropolis/wp/2017/06/07... [1]: http://www.ebony.com/black-history/the-destruction-of-black-...
Just being clear, but wouldn't those also if not more so effect the immigrants OP brought up? Are we not also including Asian minorities?
See https://www.npr.org/2011/10/25/141672992/native-foster-care-... for one of the many current problems that natives have.
For the record I have family members living on reservations. Go back a little over a century ago, and natives were hunted for sport, like game animals. It was only 40 years ago that the USA officially discontinued policies of forcibly removing children from their homes and putting them into schools where they were mistreated. I personally know people who were beaten as children for speaking in their native language. Abuse and prejudice remain facts of daily life.