I don't use tiktok, but some people have unusually based tiktok feeds. They can get direct footage from the genocide happening in Gaza, for example. I never get that recommended on YouTube, despite my very obvious socialist leanings, watching pro-Palestine content, etc.
This is the actual reason tiktok is being banned (if they don't sell) after the election. One of the largest lobbying groups in America, AIPAC, in probably the most well-funded policy categories (pro-Israel policies) backs most of Congress. They've determined tiktok has far too much influence on American youth, and has made the Israel/Palestine divide a young/old divide more-so than a left/right divide.
There's already a strong correlation between political leaning and age, which is problematic for the future of the fascist movement in America, but this issue falls outside the norm. You'll find a lot of young conservatives calling for an end to the needless killing of civilians. They won't call it a genocide because admitting Israel is a genocidal apartheid state is too far for them, but they can at least admit killing tens of thousands of children is not the right path here.
That kind of extremism (e.g not greenlighting any amount of culling of "human animals" Israel feels it needs to do) is unacceptable to the pro-Israel lobby, and they're not used to getting this kind of pushback from the American public.