I'm not disputing your experience at all. I know there's a lot wrong for disabled people and it needs to be sorted.
What I am seeing, though, is that Tanyalee Davis is a shameless self-promoter who deliberately provoked a confrontation for her own personal advantage, and there's no excuse for that. As I and others have said, it's pretty obvious the people concerned would be abusive when challenged, and would be to anyone. They're ignorant cretins who deserve all the criticism they get, but this was a completely avoidable confrontation that I think she cynically set up in order to splash herself all over the press again. If I'd been around these people, there's no way I'd have antagonised them like she did, as it was pretty obvious I'd get grief for it. It has nothing to do with her being disabled, and a lot to do with her being a quite unpleasant character who sees everyone as fair game for being publicly roasted on the Internet, so she can sell tickets to shows. I know she has it tough, but my sympathy is rapidly running out.
If I ever come across her on my travels, I'll keep well away.