What the US establishment actually doesn't like is that TikTok wields a capability to influence the American public by amplifying certain topics and deranking others, also with their content policy. It's a capability that the US companies enjoy all across the world with few authoritarian exceptions, and even the EU doesn't get to review Facebook or Google's algorithms (there is an effort to force them to explain their algos (Digital Services Act), but as far as I know it's not even close to the intrusive search-like audits and vetos mentioned in this article), and smaller less influential countries/political entities can't even dream of forcing the FAANG to comply with their demands. So it's tremendously hypocritical for the US to rile up paranoia about "personal data" and "national security" especially considering the Snowden revelations. (Draconian)rules are for thee but not for me. Also the US companies' algorithms are probably protected by the first amendment, so I'm not even sure that this crack down on TikTok is even legal.