I’m not sure it’s exactly Xenophobic. When companies say a product is made in the US or stretch the truth it pisses people off and it should. Also nothing at all wrong with trying to buy made in America IMO. I do ok but if money were no object that’s exactly what I would do.
I do know from experience that knock off parts are rampant in China. Bought and continue to buy a lot of tooling there and it’s a big problem. Some of this stuff looks exactly like the original. I would be a Skeptical of Fancy capacitors and such. Line magnetic seems to be a reliable company as does Cayin but some of these too good to be true outfits I would 2nd guess.