This is fundamentally a good thing, nobody against it has a compelling argument I've read so far of why they're against it, from the American perspective of course. If the only reason you can buy goods is because of slave labor, so that Nike can sell a shoe for $500 that is made for $1 in BOM, then I don't care their profits are going down.
If your argument is that iPhones can only be made in China or else it'd cost $10,000 for one, okay explain to me why? Oh it's because of slave labor and that 90% of manufacturing has been moved to China since the 90s, and ramped up even more in the 2000s so that companies can juice out even more profit. So with tariffs there are two things that will happen, either they get a maybe ~20% price increase as they're tariffed coming in (Apple isn't going to add the entire tariff cost immediately), or they get a hypothetical doubling in cost if they're made in the USA. Ok, now imagine what the cost would be if the manufacturing line was in the US 10 years after establishment? Or even 50% of the line? You think someone in 1950 was lamenting about how expensive their toaster (an old technology at this point) was because it wasn't manufactured by slave labor? Of course not, because the manufacturing was probably done the next town over.
I actually buy things in hobbies that are USA made, like pocket knives (Spyderco, Benchmade) and guitars (Gibson, Fender). Not only is there a perception that USA made items are higher in quality (which of course isn't true, Chinese manufacturing is of course state of the art nowadays), but the argument is that the hypothetical higher price on items will stop people from buying them, even if they're luxury goods, is wrong. This doesn't stop people AT ALL. These things still sell hand over fist even compared to their secondary foreign manufactured lines within the same company, that are made in China, Mexico, Indonesia, Japan simply BECAUSE they are made in the US.
If the argument is that people will experience layoffs after this when companies say they'll be less profitable which will definitely happen, they're STILL doing that despite having record profits and having to squeeze out even more profit. Only 50% of people even own stock, and only maybe 1% own enough that makes it even life changing enough if it goes up and down, and they're all institutional players. Again, if someone is saying the decrease in stock prices gives them less capital to hire people and there will be layoffs, they're still doing that despite having record profits and all time highs in any given period. IBM and Amazon are laying off and outsourcing to India still today, even though they're richer than ever, and so is every single company.
This doesn't even take into account the actual geopolitics of a kinetic war. China makes like what 90% of all steel on earth now? You know how screwed the entire western hemisphere would be if the next week Xi Jinping just decides to invade Taiwan? It would be COVID level depression x10 or even x50. Forcing companies to ramp up domestic manufacturing in literally every country is a good idea.
I haven't read a good argument other than the repeated slop "my iPhone will be $200 to $500 more expensive". Good news Bob, the iphone actually only changes maybe every 5 years so you don't have to buy one this year, and now you won't be abusing Chinese, Vietnamese, and Bangladeshi slaves now either.
