I don't know. You seem like a nice guy. You aren't being violent or rude or slovenly in any way that I can see. I'm not sure what the deal is. It could be a classic case of racism we're dealing with here. I'm flat out white, middle class female from a small town. I don't have to deal with that kind of problem in my life. Other problems, maybe. But not that one. I have been kicked out of a starbucks before for "loitering" with my computer, though. They make you order something when you go in. I wouldn't make a big deal out of that one.