I'm in my late 30s and nobody I know thinks Facebook is fine, including the few people I know that still use Facebook.

TikTok China and Facebook USA

Obviously China bad

Because CHINA BAD even though they are an ocean apart from you and can't jail you like your own government.

That's because all those boomers don't use TikTok so it's easy for them to say that "it's bad and privacy invading". However, when you have to accept that the platform you rely on so much is bad, it's not so easy to say "it's bad and privacy invading".

How is the US a bastion of free speech???

I can't speak to the privacy aspect, but its at least possible to interact with Facebook in a less algorithmized way, especially if you turn off the news feed and just search for interests or visit grandma's page. Ticktock, from what I understand, just profiles you into boxes and proceeds to shovel a stream of swill into your trough until you are maximally isolated and radicalized in your echo chamber. I think it's crazy to trust either and I'm glad to see GenZ shunning FB a little more. I avoided Ticktock, but do have a Facebook account.

I think how you interact with the sites can effect ~perception~ of privacy.

One other reason that I'm surprised not to have seen anyone has already brought up is the degree of government involvement. There's the perception (whether it's true or not) that a business run in China is necessarily on the lookout for the government's best interests and possibly directly interfered with by the government. The same perception says that's not true in America, where the only time the government is involved is through direct known legislation & regulation, or via espionage operations done against the company's will. There's an absence of fear that, for example, the company will be manipulating its algorithm for the government's gain. (Instead, it's purely manipulated for the company's shareholders' gain, which is oh so much better, right? Right?)

fb is evil

Why is syphilis seen as infectious and bad, but herpes is fine?

Coming from someone who uses neither currently but has used Facebook before, I think it's more to do with the fact that people are used to Facebook, Google and other companies collecting data. Facebook does a ton of lobbying to tell you just how much they value privacy.

Facebooks data policies are supposed to follow US law. As you already mentioned, I won't go any further on that. With a foreign country that isn't exactly super friendly with the US, they could use this same data against citizens. You have no real GDPR, or US privacy laws to protect you if China decides to target a diplomats family or whatever.

For most people, it's probably not going to affect you either way, but because data is something we really don't understand the full value of. As an Example, ethnic groups could be targeted and tiktok can be used as a data source.

With the whole Facebook being used to potentially manipulate elections, Tiktok could be as well and the US/other countries have even less they can do to stop it.

But a lot of the hate that you're seeing on the news is playing into China bad and not really casting light that they are okay with US companies collecting the same data. See: https://www.theatlantic.com/technology/archive/2014/06/everything-we-know-about-facebooks-secret-mood-manipulation-experiment/373648/

https://www.theguardian.com/commentisfree/2017/apr/17/brexit-voter-manipulation-eu-referendum-social-media

https://www.businessinsider.com/tiktok-censor-china-critical-content-uighur-uighurs-2020-11?op=1

Meta/FB doesn't want anyone else sound what they do

facebook is a US company and has a high incentive to reasonably adhere to US regulations and consumer protection laws, especially when it comes to US citizens. Tik-Tok is not a US company and is not incentivized to reasonably adhere to US regulations and consumer protection laws.

Both companies might share your information, but if you live in the US you would have SOME legal standing if a US company did something out of line with your data. If Tik-Tok decided to publicize all your messages I don’t imagine there is much you could do. If facebook did you could probably get a reasonable lawsuit going.

Because boomers use Facebook.

I don't use either.