They see a fun app, they play with it. If they're even aware of censorship issues or geopolitical power games, that seems very distant from some app that amuses them for a few minutes a day.
Everyone knows the stuff they buy is manufactured in China, and the old timers holding weird grudges from the 1970s are long gone.
There is no economic incentive for anyone to bring this up at any time during any transaction.
I've found sites that do "made in america" generally, but ideally I'd like a site that allows something like "sort by distance to manufacturer" - I'd like to preferentially support businesses proportionally to how geographically local they are.
Would also be interested in sites that have some sort of curated directory of companies that have good labor relations, quality controls, environmental impact, etc.