I have a few Chinese folk wind instruments and for American stuff, a 1970s Koch cocobolo alto recorder and a 1920s Martin sax. Other than that I don't think I have any musical instrument made in either China or the US, and I probably have hundreds. Not sure about my Müller autoharp, thought it was American but it's labelled in German.

If guitars go extinct I wouldn't exactly miss them. The dullest musical instrument of all time.