A question was asked, mind you based on multiple false premises.
But here is part of the answer:
https://www.nbcnews.com/news/latino/immigrants-outperform-native-born-americans-two-key-measures-financial-success-n1020291It is not just native-born
minorities who are outperformed by the immigrants, but native-born whites, as well.
One of the false equivalences used in this argument compares the Blacks to more recent immigrants who "arrived here with nothing."
Both groups are subject to prejudice and bigotry, but some of the more recent groups "benefit" from the
model minority myth.
Blacks have more to overcome than new immigrants, on average,
exactly because assholes keep looking down on them for the ostensible failures of their forebears, with no ability to perceive the double jeopardy.
If a Black succeeds, their success is challenged for perhaps having come from Affirmative Action or other forms of giving Blacks a break, while if they fail it is all about their personal failings.
See also: women.