If anyone is being oppressed institutionally (key word) they are free to leave.  Canada and Mexico make great stopping off places until these "oppressed" people can make their way to Iran or Arabia, or even Africa.  But these "oppressed" have never left, even after 60+ years of whining.  Why doesn't Al Sharpton or Jesse Jackson (the leaders of the oppressed peoples) leave?  Why--because they know that no other country in the world will give them the degree of wealth, power and privilege that they enjoy in this country. "Oppression" is fake news, the evidence of it is plain to see.