Don't be surprised if there is a ban on FB and Twitter by other countries too! But not for the reasons you mentioned. The reason would be undue political interference if there is evidence of the same.
But TikTok is not like FB or Twitter. The parent company ByteDance has direct affiliation with CCP. They have an actual agreement in place where they will share any and every data with the CCP even without any legal basis. This is not the case in the US. The US Government has to get a court order to get information from FB or Twitter.
Here is a quote from Twitter's Law Enforcement page [2]:
"Private information requires a subpoena or court order
Non-public information about Twitter users will not be released to law enforcement except in response to appropriate legal process such as a subpoena, court order, or other valid legal process – or in response to a valid emergency request, as described below."
And if the US Government wants communications details it needs to obtain a Search warrant [2]:
"Contents of communications requires a search warrant
Requests for the contents of communications (e.g., Tweets, Direct Messages, photos) require a valid search warrant or equivalent from an agency with proper jurisdiction over Twitter."
[1]: https://news.ycombinator.com/item?id=23774779
[2]: https://help.twitter.com/en/rules-and-policies/twitter-law-e...