I'll never understand why (a) Vine was shut down, and (b) So many Americans are eager to rush out and use a Chinese social network. I suspect (b) can be explained primarily through ignorance.
A huge swath of the consumer market in physical products is Chinese goods. Why would your average nontechnical, fairly apolitical, non-foreign policy or intelligence news following person draw a distinction? 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.
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.