This is not blue/read/MAGA/No-MAGA/anything, this is just one view of the economy putting that aside:
We have incredibly talent, intelligent, perhaps the best in the world or amongst them engineers, but even if we could get these production lines, buildings, supply chains, etc built in years and not decades (we can't do it overnight: have a look at Intel Fab 42, the TSMC fabs in AZ, etc, they take 5-10 years, even assembly lines take quite some time, and market-driven companies that report earnings to the public markets think in quarters, not years, let alone multiple years in nearly every decision, so even long term strategic initiatives and capex have to make sense this quarter), who will work there?
We have clamped down on even legal immigration now, too.
But this is not just recent, this degradation of education (STEM specifically) has been going on for decades. This didn't happen overnight. Nor even the course of one or even two administrations. This has been happening for decades.
Give a quick search of the forums for iPhone pricing. This forum is probably amongst the segment of the population who both can and will pay top dollar, and you'll find so much complaining about a $100 price increase. So, really, who thinks people will pay 2-3x for a US made phone, even if we could make it. So, let's pretend we COULD make it with zero price increase (we can't), show me the labor, where is it? Where are these individuals who are skilled assembly workers en masse who aren't already employed, show me the pipeline of educaitonal institutions where we are developing a labor force our domestic companies can rely on so that "if they build it, someone will be there to come to work"? If we could fiat the entire infrastructure into instant existance it would do nothing but stand largely idle because the workers don't exist to staff these factories and the robots don't do it all yet and they actually won't for sometime yet (and very skilled yet still blue/white collar hybrid workforces are very necessary there who have very specialized skills to make those work!).
They do not exist at the scale we need them to. We have to solve for that first. And we're going rapidly in the wrong direction, and that's not a political statement, that's just an objective reality of what happens when you remove education, and specifically science, technology, and math education from our list of national priorities.