Not a stupid question at all, but so far in the weeds of speculation that we couldn't get a straight answer out of it with a 24 pack of beer, a d100, and a really good DM. But let's ponder.

The nature of international trade and finance is screwy AF. It's like finance for the rich, where the only money that exists is what people owe to you and what you owe to people. Noting ever changes hands, not to say that it would soften the blows but it does make the effects move more slowly than one might want.

If it were just the international fall of Apple, Microsoft, and Google, along with the standard bits and bobbles of alcohol, and whatever 100 other odd consumer products we actually still manage to produce in the states, I don't think that'll hurt us as much as whatever eventually happens to with AI. A single day of military production probably outstrips most of that. While it's possible that other warmachines can ramp up to quell the hunger of everyone for world destruction and weapons for self-preservation, I suspect once the current series of aggressions, fiasco,s and administration disappear, the US war machine will still find plenty of buyers, though the menu will likely change as we'll no longer seen as a reliable ally. Food and Oil/industrial exports will likely fluctuate, at most. I suspect they'll be forced to sell at a discount. If tourism doesn't recover, that'll beat the F out of a lot of places. We might see Vegas go fallout style.

I'd love to see European alternatives for Apple, Microsoft, and Google. I'd import that in a hot second.

Honestly, If the world really wanted to see the US burn, they could just stop trade altogether. The time to restructure food, coal and oil would be enough to starve out a lot of the population, even if we're relatively close to self sustaining, none of those channels are setup.

Imaine the calls for blood when you can't get produce out of season and avocados become $15 each.