A masked guy breaks down your door w/o an Article III warrant absent exigent circumstances? Yeah, I’d agree. Trick will be that pressing the murder charge would be federal since a federal agent dies in the line of official work (though illegal), which would give the president grounds to push for death.
There’s a reason why the left always ridiculed the right’s fantasies of resisting the government with weapons.
I’ve never heard the left do that. That’s pretty much always been liberals.