couple of things
1st....its okay to say if blacks are part of groups you are hesitant with, no need to hide that. you sound smart and intelligent so which ever group it is that has you in a not positive mood i am sure you wouldnt tar all of them as guilty of anything just cause of their skin color
2nd.... "several bad experiences"? with the same group? or all types? hopefully they were not traumatic but i do hear "bad experience" and first assumption is that its just an excuse not to see me. Obviously i dont get that in your case at all ... like i said you come across very genuine and honest
Not black, central asians, generally the younger ones. I've been robbed/underpaid, boundaries pushed despite repeated warnings of limits, assulted, drugs pulled out (despite a strict no drug policy) and more. Never actually had a problem with a black client, or east asian/oriental, may just be the case of my area.
I don't blanket ban central asians, as I've also has several good experiences (including a couple of good regs). I just know language in messages to look out for, or behaviour patterns pre meeting that cue into a bad time. Similar to with a certain subsect of white clientele.
I have had issues white men, of a particular subset, and I am cautious about agreeing to those bookings, I'll often push for an outcall instead of an incall. Easier to get away if something is going wrong.
As such I don't judge on race, but I have to admit I am more nervous when meeting someone of central asian backgroup, or white men from certain subgroups. But the language they use to approach me can put me very much at ease.
But that's just my experience for my area, I can't say what's happening in other areas for other girls. I honestly don't get many black men, so not yet to have a problem.