Can someone who is verbally/emotionally abusive change their ways?

No, you cannot do that legally. You can tell guests they're no longer welcome, and you'd like them to leave. If they do not, you can call the police to have them removed.

Of course you can't. That's absurd to kill someone for verbal abuse. If it is your property (own or rent) and you ask them to leave and they refuse, then you call the police and tell them the people are trespassing.

You should warn the guests that if they don't back off, you will call the cops if they don't leave. Better yet have them stay in a motel.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.