You are correct, I don't care about any of that either. And I know about the boilerplate. Bud.
You need to agree with yourself about what you're arguing. Are you saying that the problem is the SSO or Plex?
Because if Plex will go tell on you it will do it based on the data they have internally, not based on any data captured by the login flow, so the SSO is not additional issue compared to using Plex without the Google login and using the email login instead.
And if you're arguing that the SSO is the problem and not Plex which you indignantly reminded me is what the thread was about, then you're arguing against yourself, because it sure seems we agree that if Plex is going to take any action against you illegally sharing files through their system (which, by the way, they are legally obligated to do) it won't be due to the Google login at all, which is just a bit of convenience and doesn't seem to provide anybody with any data they don't already have.
Once again, you are super keen on playing up hypotheticals. Once again, the biggest issue with those hypotheticals is that Plex boots me out... of Plex. I am not doing anything illegal with it or even breaching their EULA, including the paragraphs you quote (not that something being written down in an EULA makes it applicalbe, but still). I will bite that bullet and live with Jellyfin's implementation if and when that happens. Which it likely won't.