Because it's clearly being banned, not because of privacy violations, not because of the nefarious impact of a foreign government, but because of the content that is shared on it. It is the only major social media platform with a strong pro-Palestinian viewpoint on it. And the people in Congress have been caught on camera explicitly stating this is why they want to ban it.

I hate Tiktok. I don't use it. Never have. But I still don't want to see the US turn its internet into the Great Firewall of China 2.0.

The leaders in Congress cannot stand the idea of there being a social media platform that is popular in the US that isn't hosted in the US. Why? The answer is simple - control. All the US social media platforms are heavily influenced by the US government. Hell, most of them openly contract with the NSA. Facebook is an NSA contractor. These platforms get a ton of money from the US government. And despite what conservatives bitch at in regards to "being censored," the real censorship is against anything that doesn't advance US power and influence. Outside of Tiktok, the major platforms heavily censor pro-Palestinian messages and stories. Go to r/worldnews and post anything other than "Palestinians deserve to be vaporized," and you'll be banned within 5 minutes. It's literally that bad. Even when outright bans aren't in place, the platforms will severely down shift any pro-Palestinian content and keep it out of peoples' feeds.

"Beware of he would would deny you access to information, for in his heart, he dreams himself your master."