I don't discount that potential. I'm certain it exists. I'm also certain that it exists on youtube and facebook and twitter and reddit and will continue to influence US politics long into the future. Yet the US government has never once spoken about banning facebook and youtube or any other platform doing exactly the same things as TikTok, they're focused only the threat of the one Chinese platform while allowing China, Russia and anyone else to influence Americans though US owned platforms. They're even fine with letting China influence Americans using TikTok as long as TikTok is owned by a US company.
I'm just not buying the argument that TikTok represents a threat to our democracy any greater than the threat posed by youtube or twitter. I don't see how taking away our freedom to access/use a Chinese platform that isn't violating any US law and isn't doing anything different than similar US platforms are doing is really helping to protect us here. Congress telling Americans what software we can have installed on our own devices, and preventing us from accessing platforms in other countries seems much more likely to lead us down a slippery slope than one Chinese owned social media platform being allowed to do what all the US owned platforms are doing.