BTW, non-Americans who think everybody else should get a vote in our elections: I fucking get it, I really do, but no.

First of all, the real problem is that we as a country have too much power internationally. Thankfully, things are trending in the right direction these days, if for the most stressful reasons possible. We really do need to become Just Another Country.

Secondly, a lot of the problems with election results, are really the results of voter suppression and failures of education. You can't solve those problems with voter suppression (I've seen "Americans shouldn't get a vote") or making civic education irrelevant (local votes getting drowned out by international), those are doubling down on the problems that gave such visibly terrible outcomes in the first place.

Fundamentally, most of our "intractable" problems will become tractable when we're a less valuable population to manipulate and extract from. Which will hurt, but be a good thing long term.