Ok, but if you agree it’s a problem and “why aren’t we also banning or more carefully regulating other social platforms”, I don’t disagree with you. Let’s. There’s broadly enough accepted truism that they do probably do pose a threat (not just to democracy, but in terms of harms).

But a foreign one that’s directly controlled by an adversary is certainly one we can tackle immediately and it’s easier to muster the political will. They don’t need to be connected. Of course it’s hard to trust the government when they have a history of lying, but there’s every reason to believe the threat they’ve been communicating out as real in the wake of the attacks the Russians launched on us in 2016 and given it’s an election year. It’s like all those people who didn’t trust when Biden said Putin was gearing to attack Ukraine imminently.

On the other hand, there is reason to be skeptical of that claim since the tiktok ban won’t happen until well after the 2020 election. So maybe it is the US trying to kill a major tech adversary that’s managed to dethrone our own oligopoly in the space. But that’s the starting point of the argument - is it really going to be used by the Chinese governments for election meddling or is it protectionism to hide the rot within the US regulatory framework that’s simply entrenched interests.