First, I don't think Trump has previously said anything about the topic of, "safe spaces". That's something that anti-SJW types publicly reject, but I don't think Trump was on board or even aware of that. Second, I have no problem with the actors standing on stage and talking to the VP. If it's their only opportunity to do so, go for it. I think what they were saying was a little baffling, I'm not under the impression that Mike Pence actually hates these people or would really do anything to harm them in any way. But that's what people tell me he's going to do, but color me skeptical. Third, people getting mad on his behalf are ridiculous. Pence made a public statement about how he's completely fine with what happened. I personally feel the audience members booing at him and his kids is really shitty, but they are free to be assholes the same as me.