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.
A lot of resources to be expended on domestic soil, eventually they’ll run out of both weapons and the very working people they need to keep the economy running to (among other things) keep producing weapons, no?
Yes and no. I think you vastly underestimate the military’s stockpile. So, they could subsist for a good while until all the Democrats/“Domestic Terrorists”/Undesirables are dead. Then, they’d just restart. Still though. If the rural farmers from Afghanistan/Iraq can defeat the US military through persistence with sticks, then the same can be done here. Their tactics might even serve as a roadmap.