...but if you come onto my property acting violent and aggressive you will be shot.

I'm pretty sure you're already allowed to shoot people for trespassing.

Nope. In many states that is considered murder.

Just recently a couple defended their house from a group of "protestors" that were inside a gated community.

The people defending their house were arrested and had their guns confiscated.

And this entire "fiery but peaceful protests" started with the killing of a man who should have just been shot.

Everything today is a result of the collapse that started in the 50s and 60s.