Realistically, if protesters showed up at your house and banging the door, can u shoot?

I’m as freaking conservative as the come...but come on man.

Murder unless you had an objectively reasonable belief that they were coming in to hurt you.

In Louisiana you can kill them. You don’t even have to drag them in your house. If you feel threatened, if they break in you are within your rights to kill them. Tucker needs to move.

In Louisiana, if they kicked your door in and came in you'd be good. They should be shot btw.

If you show up on my lawn acting like a jackass and harrasing me you git til 10 Mississippi before the buckshot flies.

You can use deadly force to protect life, not property.

Some jurisdictions require retreat, the requirements of which vary by jurisdiction.

In short, if someone is breaking your door down then yes, you can use deadly force in some jurisdictions but not all. Seriously, your question is one that criminal law professors like to put on exams.

Claim imminent harm requiring/resulting in the use of lethal action/force

Depends on the state. Her in Alabama, we have the Castle Doctrine.

Under the Tucker Carlson situation, someone was beating his door to the point, it cracked. According to the Castle Doctrine, I can drop that SOB where he stands, as I have a legitimate fear for my life.

Shot through the door? Yea you are probably fricked there.