I think it’s a good idea, or at least a good idea to try and fix the problem and not just banish people to keep up the pretence that everything is fine.
I think a lot of older blokes really don’t understand how offensive some of the shit they think and say actually is.
If you just ban them they’re not going to hold their hands up and say fair play, I’m a terrible person - they’ll probably just think they were banned for nothing and be more pissed off at political correctness gone mad.
At the risk of steering this off topic - I think society as a whole needs to snap out of this delusion that racism isn’t a problem and comes from a very tiny minority. Maybe outward, abusive racism is a small minority but if people harbour racist views and believe racist stereotypes then that’s unlikely to ever change unless someone enlightens them and I think a lot of people still hold these views.
Saying all that though, I’m not really sure how you de-racist someone.