If tariffs go down then moving manufacturing to the US was the losing choice for any company that chooses to do so.
Either way betting on current US consumption levels with US manufactured goods is a losing bet.
Whether or not some third world country is worth developing is an economic question, not a moral one. And even if it is, the question of whether or not you will be able to monetize that relationship by the end of it is another one. What the chinse are doing now is basically IMF-style debt trapping of other nations, which doesn't seem like a successful strategy historically.
The bottom line is that if the natives don't want to cooperate with whatever civilization you're building, it's not going to work out. Look at what happened to the USA in afganistan (and pretty much every empire that stepped foot in there). I don't think that's racist, I think it is pretty optimistic outlook towards the sovereignty of nations.
There is a really great movie called Bitter Lake about this, by Adam Curtis.
But it's also always been protective of the internal market and e.g. added tariffs on Chinese steel recently.
The EU has always been export driven.
Of course, you won't make the same margins as EU+US business. Not sure if that is enough incentive to onshore consumer manufacturing.
https://www.pewresearch.org/short-reads/2021/07/21/are-you-i...