In the end, I do have increasing problems with watching boxing in my old age, probably stems from watching the Watson fight and many others, never even tried to watch things like MMA. Yet as others have said, it'll go underground if banned, so watcha going to do, I've stopped watching it, works for me.
I actually have the same qualms about National Hunt racing which I used to love, been to a few race meetings where the old screen has been put round a horse, but it's pretty dangerous for the rider too, again I've just stopped watching, I'm just squeamish, but not going to force my thoughts on others.
Motor sport another intersting one, and I wouldn't mind if the Isle of Man slaughter was banned, but in general it's so much safer then it was when I watched it in my youth, when I was clearly a lot less squeamish, in fact possibly the opposite. Don't watch it much either, but that's more I just find it dull.
Mansell was good to watch back then, but a total dick by all accounts.