From what I have seen, most people who object to a federal tiktok ban oppose it because they do not want the US government to censor the internet. I think privacy is brought up as a justification of the ban, and so opponents of the ban argue that it is selective to only focus on the app that is controlled by an adversarial country. I see the ban as addressing a symptom of weak privacy laws instead of addressing the root issue/cause. If privacy were actually taken serious by our government and not enforced selectively, then objections would be a lot less.
A Federal TikTok Ban is a 'Misguided Detour' from Doing What’s Needed to Protect People’s Privacy and Safeguard National Security (www.commondreams.org)
GitHub issues rule (github.com)
Also this one github.com/ading2210/edpuzzle-answers/issues/37