The most comprehensive and invasive privacy spyware system ever designed was created the US government in collaboration with a plethora of "democracy respecting" countries such as the UK, Germany, France, Sweden, etc. and in collaboration with major corporations such as Apple, Facebook, Google, Microsoft, etc. There is literally an international spying clique in operation right now being used to illegally spy on normal law abiding people around the world via mass data collection -- absolutely none of that is being done by China.
Your data is unironically safer with a Chinese company because China has zero jurisdiction, power, or concern over you. The Chinese government knowing the ins and outs of your politics cannot be used to harm you, meanwhile that same data in the hands of your own corrupt government can and will be used against you. It's a matter of when and not if.
Any concerns over TikTok algorithms corrupting kids or "Xi spyware" spying on US citizens is irrelevant when all of that is being done right now via Facebook and their sub brands (Instagram, WhatsApp, etc.) right here in the USA. Facebook and the NSA are a bigger threat to American democracy than TikTok or the CPC.