I think the best we can do for those people is leave them to their own process. Yes, there should be consequences for all the horrible shit they've done and endorsed.
But they're still people, bound to the same emotional illogic all of us are. Empathy is needed.
Nervous about posting this, because people confuse empathy with forgiveness or unity. But it's not.
It's imagining yourself in their position, dangling from a cliff with no one to blame but yourself, and thinking how you would want to be treated in that situation.