No one is completely living outside the US. No one. Especially big elections concern everyone on the globe to some degree. It’s also simply interesting, although sometimes in a morbid way.
That being said, if you’re into politics in the first place, the one in your own country should have the higher priority in my opinion. I’m saying this because I know non-Americans who concern themselves more with American politics (it’s flashier and social media is so full of it, it’s easy to fall down that rabbit hole) than those of their own country. I think that’s a problem because it distracts them from problems they face in their own backyards that they might not even be aware of.
Do you see that biceps? He’s clearly a king.