Why shouldn’t it be that serious? In fact, when we know the barbarian is not only infiltrating our country, but doing so for the purpose of committing crimes against our citizens, why shouldn’t there be a bullet in the head awaiting him?
Because it’s a little matter of God and of secular promises (aka Constitution). You get to break the rules for something that gets you incensed... so does your neighbor and woe if what made him incensed was you.