In my experience the more successful a black person is the more likely they are to be conspiratorial to reconcile their success with their ancestral legacy (How could black people have been slaves for so long, when I have this much potential? We must be native to the US, etc.), and the conspiracy world is often antisemitic, homophobic and enamored with Trump. Remember when Kanye said slavery must have been a choice to go on for 400 years? That strain of thought did not originate from him but is instead a whole political movement.

It’s not always class. There are also a lot of black conservatives and old heads who despise the youth culture because they consider it thuggish and impolite. And even if they do believe in systemic racism, they believe that this culture is what’s keeping them down, either deservingly by the white man or by other black people. Some of them may be rich and attribute their assimilation to the success while others are dirt poor who demand their children assimilate to succeed.

They want you to pull your pants up, and Trump does too.

TLDR: they may be small business owners, but it can also be general conservatism as well as a form of self hatred and guilt.