The simplest solution would be to only see tried and tested girls. Possibly ones reviewed by black punters. In all honesty there's no guarantees, but nothing ventured, nothing gained. I had a two hour journey for fuck all in 2018 and that was with a well reviewed escort.
That's not really fair on new girls, who may be very good SPs and don't operate a NBA policy. And we all like variety, so it's good to try new ones
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It just needs girls to be up-front about who they do and don't want to see really.
As a White guy it's hard for me to put myself in a Black guy's shoes, but it seems to me that if this had been an issue for me in the past then when I'd made contact with a girl, I'd probably want to politely check in a by-the-by, matter-of-fact way if they'd see me as a Black guy? Yes, I know you shouldn't have to ask, but there's ways of asking without making yourself feel like shit, it's the pragmatic thing to do, and would save a wasted journey or any in-person discomfort as the door opens or as the girl looks out the window.
From what I can make out, some girls are adamant about it and you'll never change their minds, but from many posts on here it seems that lots of girls operate a ban based not on personal experience but on an ignorant 'rumour mill' (his enormous cock will kill me, he'll be rough, he'll rob me, he'll try to become my pimp, or whatever other shit). A polite enquiry with girls such as this is often met with a positive response, and then if the meet goes ahead their prejudice will be shown to be unfounded in their own personal experience. Tell her to fuck off and it'll simply reinforce her prejudice.
As for me choosing not to see girls who operate a NBA policy, well as others have said, having sex is not the same as serving people in a shop or working alongside someone, it's not everyday life. They're not all 'racist' in the commonly regarded way, ie they don't like Blacks, wish they weren't here, have nothing to do with them and all the other stuff which fucks up a multiracial society and is just plain nasty. So unless I get the impression from a WG's profile that she's out and out racist, I shan't be letting that stop me seeing her.