I think it depends on the items being considered for purchase. I would absolutely purchase USA made work boots. I have an anecdotal experience. The brand was Matterhorn boots. This was when I had to crawl alot in crawlspaces ect, they were listed under mining worker boots. The USA made ones lasted longer, but here's the rub, they didn't have insulation for like winter. So I purchased "almost" the exact same boots with insulation, but they were made in China. The waterproofing of the USA made pair lasted the life of the boots, the China made ones, 3 months before water proofing failed. Insulation is no good if your feet get wet.
So the 3rd pair I bought were just like the originals, same model number, made in USA. the water proofing lasted beyond 3 or more years. The price wasn't much difference. I think the insulated ones may have been 20 mucks more. I can't remember, but the quality was garbage. If it wasn't for trying the second USA pair, I wouldn't have believed there was that much of a quality difference.
My current work boots, were 550 bucks, 16" lineman boots. Work gives me 200 towards boots every year. But I don't use it, because the 200dollar boots are garbage as well. My Wesco boots, I sent them in for custom fitting during a rebuild which was 325 ish, they appeared brand new, but wearing them told me otherwise, because a new pair takes like 2 months of oiling and wearing to break in properly. The 3rd go around was having them mainly re soled. w shipping ect, was about 260, by this time I got my work to cover the boot allowance towards rebuilding. Which was also increased to 250 per year. I need to send them again for the heel portion wearing, but it's been 2 years.
Same with my Lineman's body belt, safety trap (Buck-squeeze) and Climbers.
But it really depends on the items. Like my PC watercooling, I would prefer Aquacomputer, Heatkiller, I have a DT waterblock, Detroit wb but they went defunct. Caselabs is probably my best USA made purchase. Unless it gets thrown off a building, this thing will last forever. Kinda like them OLD Pioneer stereo equipment from the 70's early 80's, the analog stuff.
But as to your original post, I find myself, just buying less, I will check the country of origin, and debate the cost difference, and depending on the necessity of the item. If it is within 10% on something under 100 dollars I will go the 10% route. I just feel we should support our workers, because I have worked an assembly or production line. There is no way I would do that work for minimum wage or even 15-18 dollars an hour.
I described it like this to people that had never done it. It is like standing in one spot for 8 hours, and you have to wash the same plate over and over and over again, and you never get to the bottom or the last plate. It's not like it's a plate, a bowl, utensils, pans, no that variety does not come. you may wash any of those but for 8 hours it is one type the whole time.