There is some cross party support for banning TikTok for differing reasons. Concerns about national security and so forth. I think there might be some room for argument there. I don't use TikTok myself though I'm aware of some of the issues. A debate about that might not be necessarily a bad thing. TikTok is a foreign private company with ties to a rival national government.
It would just be flooded with Chinese agents and bots. It is a ban that would accomplish nothing.
I would just like to add that hate speech is banned in many European countries (including mine) and strangely we have not fallen into some infernal dystopia. Indeed, on average most European countries are freer than the United States in almost all indicators.
We have all kinds of hate crimes on the books, including those that cover speech.
How federal law draws a line between free speech and hate crimes | PBS NewsHour
But while the Constitution gives latitude to hate speech and offensive rhetoric, court decisions in the last century have carved out notable — though narrow — exceptions to free speech guarantees and authorized prosecution for language deemed to fall out of bounds.
Comments intended as specific and immediate threats brush up against those protections, regardless of a person’s race or religion. So do personal, face-to-face comments meant to incite imminent lawlessness, such as a riot.
Hate speech laws don't stop elements that want to cause chaos. Or else, Europe wouldn't be seeing a resurgence in Far Right politics.