Or we could strengthen alliances with our neighbors and potentially shift some of that burden to them. Trying to move everything here is not feasible. We simply do not have the human capital or willingness to manufacture every low level widget in the world.

What this administration is doing is not a recipe for success: trade wars with everyone, immigration crackdowns, and unpredictable tariff policy.

EDIT: Oh and hinting at invasion (Greenland, Canada) doesn't help either

I agree.

But Taiwan or the rest of Asia is still a problem given the tensions in the area. If China did something it could seriously effect supply even if it wasn’t an attack on whichever country was supplying us.

We need friends making things in Canada or the rest of the Americas or Europe or Africa or some other place that isn’t China or directly under their thumb.

Even without action by man. The wrong tsunami or whatever could effectively wipe enough out everyone would be screwed.

We need geographical diversity too. The existing alliances we’re burning to the ground don’t solve that.