Israel (at least in large part) is why they're pushing the tiktok ban now. It is a little hard to connect the dots on this because the China-reasoning seems strong on the surface. I agree that China is bad, but there has not been any stellar evidence to show that China censors or otherwise manipulates users on the platform. You can easily go to tiktok and find videos discussing how awful the Chinese government is, information about tiananmen square, Winnie the Pooh jokes, etc. In comparison, the data that came out of the Facebook and Cambridge Analytica scandal was far more concrete, and Congress did nothing. Certainly there were not 81% of house members coming together to force Facebook to sell. Tiktok has even offered to make major concessions about data privacy.
Israel's war in Gaza is deeply unpopular and the fascists in Israel and here in the US are concerned that they are losing popularity. Tiktok has 100+ million active users in the US and the heaviest anti-Israel sentiment (the government and the US's relationship with the Israeli government, not the Israeli/Jewish people) is heaviest on Tiktok, which is dominated by young millennials and gen Z. This is leaked audio of the director of the anti-defamation league (a very pro-Israel organization) speaking about this. He basically tells his audience that they have a "major major major... problem" and specifically says that they have a "tiktok problem and a gen Z problem." Listen to the audio- you can agree or not with his reasoning, but he's essentially saying that the spread of ideas on tiktok is causing their polling issues.
People like this want to stop the spread of ideas on tiktok because young people are organizing, boycotting, and putting dents in the system. They do not like that young voters are having a larger and larger influence. These young people are also boycotting major companies like McDonalds and Starbucks who have taken pro-Israel stances, and these companies have lost profits from this. All this to say - I don't think there is any lack of motivation by people with lots of money to destroy the platform where these people are organizing.
It is incredible how much money Israel pumps into our politicians, both Democrats and Republicans. Joe Biden himself is the largest recipient of this money. There are anti-BDS laws (specifically for Israel) in 37 states. I don't think many people are aware of just how much influence Israel has in the US. It is surprising and disturbing, but I am equally surprised/disturbed at how little attention these topics have received on Lemmy of all places. I don't think it takes a genius to start making these connections and to start asking questions - maybe this isn't the full picture but there is a lot of stuff here to be skeptical about. That said, I absolutely do think this kind of information is suppressed on other platforms, and they want to suppress all of tiktok because it's dangerous to them.