Trump supporters don't understand that the a massive amount of the US supply chain runs THRU Mexico Trump supporters understand this perfectly well and voted the man in on his promise to move as much of these supply chains into America as possible. The rest of your post makes it appear that you already know this, and you think it's an impossible goal, but it's short on evidence.

This is the same shit as when Norway offered to pay for healthcare aid after Trump pulled it a few days ago. Yeah, that sure showed Trump supporters. They want to defund NATO and other foreign involvement, foreign government steps up to foot the bill immediately. They want globalist companies penalized for moving factories out, Mexico offers to do that.

If you have evidence that this will result in big regrets for his voters, focus on that. Currently all you're doing is assuming that they have the exactly same view as you, which they don't - to them this probably looks Trump getting multiple birds with each stone he throws.