As I posted in another forum this morning:
The issue is that it's a propaganda conduit that they don't control. Google, Farcebook, Bing, etc. are infested with "former" intel agents of the US, Britain and Israel, everything that they present you is algorithmically calculated to support the Official Elite Narrative.
Tik Tok on the other hand is far more like the Internet in its original configuration, a free wheeling mess where users can run into pretty much any random thing. Our elites are disturbed that people are being presented with information contrary to the Narrative, which they are unable to control. For example support for Israel among the young collapsed when videos of the atrocities in Gaza started showing up in their Tik Tok feeds, and support for Biden among Tik Tok viewers followed the trend.
Perhaps almost as alarming to the Elite is that Tik Tok users are being presented with news sources that they don't control. When the NYT and WaPo were considered the only voices of authenticity and Hollyweird formed our view of the world it was easy for them to control the narrative, now people in the "West" are finding that their counterparts in the rest of the world aren't the monsters they've always been portrayed but just people like themselves. Third World countries are not necessarily crime-ridden hellholes, women in Islamic countries do not all live lives of miserable servitude, children in Africa play just like children in Iowa.
Everyone in Congress KNOWS very clearly why Tik Tok is a danger to their continued hold on power, this bill was pretty much inevitable.