The wars, by and large, haven't been terrible for the US though. If they were they'd stop having so many. They cost money that goes on the fantasy pay back pile, a lot of people make a lot of money from them and, by and large, those who suffer most are people who aren't important.
Problem is that those jobs aren't going to move back to the US, certainly not long term. The economy is based on buying cheap pap from overseas, not expensive guff from the US; making the overseas pap expensive isn't magically going to turn Detroit back into a thriving industrial powerhouse, it will just make everything expensive. To believe the Trump response requires the parallel belief that every other US President has been a malign actor deliberately stiffing their own country for the benefit of those overseas. Someone working 16 hour days in a Bangladeshi sweat shop making shoes or T shirts probably isn't that happy about it, but you're never going to get an american able to make T shirts to sell at 5 bucks a piece. You can only get an american to compete selling them at maybe $15 bucks a piece.
Which will have an awful effect on poorer people who need those cheap shirts and will find their clothing bill and food bills going up significantly to be the last straw. Contrastingly, it's also 'bad' if too many poorer people get jobs due to all the illegal immigrants getting biffed out since that drives wage inflation which further drives prices up...
Don't get me wrong, the orthodox economic model is awful, but it's the way it is for a reason.
And when it comes to heavy industry type stuff coming home, well, to put it in perspective: nearing 3 years of a supposed existential crisis and with something as simple to make as artillery shells and it's still too hard to, uh, hit the targets.
As always, the proper troll option is to buy French nuclear subs.