The sitting president of the United States was forced to settle a discrimination lawsuit after it was shown that he instructed his staff to mark applications with a “C” (for colored) so that they could be rejected later.

So, at this point, you come across like someone "just asking questions" in an attempt to sow dissent and propaganda, because the antipathy of the entire right wing of the US toward all nonwhite people (but especially black people) is very, very clear and very, very well-documented at this point.

But in case you are genuinely just hopelessly ignorant of the situation and somehow unable to use Wikipedia [0], I'll give you just a couple of examples.

For decades, the practice of redlining[1] exacerbated and perpetuated the lower socioeconomic status of minorities, but especially black people, in America.

The Black Lives Matter protests were sparked by the killings of black people by police in the US—not "a couple of black people", but "a long history of killing black people in their custody at hugely disproportionate numbers, with a few very, very prominent instances leading up to the protests."

[0] https://en.wikipedia.org/wiki/Racism_in_the_United_States

[1] https://en.wikipedia.org/wiki/Redlining