TikTok is mostly harmless when considering everything its peers do (i.e. the same things).
The mass surveillance done by more or less all popular social apps on phones (and beyond) is a problem, but that problem is everywhere. It would be good for all of us if tiktok was treated fairly, and by fairly i mean the FUD about surveillance and manipulation should apply everywhere and be regulated everywhere not just the Chinese state sponsored kind.
Enact data collection laws, local storage laws, etc. and apply them everywhere. Then better regulate and control the agents of foreign powers that overly influence business done in America.