More like the other way around.

US users are today 21 of the 49 TikTok accounts with the most followers <https://en.wikipedia.org/wiki/List_of_most-followed_TikTok_a...> (not including TikTok itself). When the Trump administration came close to forcing a divestment/shutdown on TikTok in 2020,[1] Americans were 10% of TikTok's user base but 50% of revenue.

[1] And boy, do Democrats who shouted Orange Man Bad back then now wish they had supported the move