OP, your posts are too difficult to read, please learn how to use your phone properly and write with clarity and structure.
You'll rightly not like this, especially if you're a polite, respectful person, but black guys have a reputation for being one or more of; rude; rough; inconsiderate; aggressive; obsessive and sometimes "too big" and those are the ones who don't try robbing the girls, beating them up or not paying. Heard the various experiences from too many SPs of all nations and colours in the past.
You'll notice that some EE nations are also blacklisted because they're similarly high risk undesirables.
The girls and pimps just want your cash with minimum fuss/stress so fuck with that business model and a guy or type gets barred. SPs' lives are fucked up enough so it's unsurprising if they nix anyone they perceive a threat and there's always another punter to replace those they reject.