Every country is sovereign in its territorial. This means that they can:
As an example the EU did exactly this when the gdpr came into play
Most of those moderation just step in the moment the lie enters the chat.
And no, you freedom of speech does not allow you to lie without facing the consecuences
True, but I would expect a soon end of life for those too
A nas is your friend.
And there is plenty is space in the Caribbean Sea
Even if you have a valid point, modern fingerprinting technics usually is done through your data and the connection dependencies of them (which accounts are activated from the sane computer and so on).
Selfhosting remove some links between your data set like the files you store in drive, the people who appear in your photos, your contact list, to whom you email… Etc etc
Suddenly all this data is vanishing from the big techs, so, in theory it would be possible to make that association process more difficult
Then follow that path, once you are comfortable with the approach you can start hosting more and more services,to the point that you can selfhost your own messenger services or ms teams services.
Once you are in that situation, you can think in accounts rotation and/or burner identities to address the services you can not pull from the big techs
You need to start reducing your fingerprint on internet.
The only reliable way to do so is selfhosting your stuff.
There are a few communities here in lemmy, so check on them
Setup a dns guardian system to make sure that they are not accessing some forbidden web pages (like only fans or Instagram). This extra layer of annoyance is pretty useful because there a lot of apps for kids with obvious holes to side load web pages that always keep me wondering if they were there by intention.
Apart of that I would setup a restricted shell to execute only the approved apps.