From what I understand, that tends to be two separate questions. How enforceable are they if the individual in question can afford lawyers, and how enforceable are they if they can't.

It it something that would get thrown out immediately or would have to be argued extensively, and is it something that the various activist organizations would provide lawyers for or that lawyers would take on contingency?

Excellent point. And now I suppose that every legal question is really two questions ;)

My lawyer told me very enforceable. I can't say why, but I had reason to ask.