Canada

Regardless of how you voted, as OP put it, if you cross into our country with the intent of invading, it's a round through the brain, or a blade to the femoral or carotid arteries, or, optimally, an axe to your achilles, forcing you to waste manpower on treating the wounded. And we won't be providing your wounded with free health care.

The way it looks, though, soon the US military will be primarily racist white men on the combat front, so it will be a service to humanity to correct that evolutionary cul de sac of attitudes.

Of course, we'll have to infiltrate and sabotage your country as well, taking out your supply chains, messing up your comms, and disrupting your mechanization. We'll probably burn down a white house or something like that, too, just for tradition's sake.

Ideally, what I'd much rather see is you guys fight it out, take out your oligarchs, and split into more manageable, less fanatical subgroups of states. Maybe some of them can even eventually join us as Canadian territories.