Over the years, this trains internet users into thinking that the internet is not useable without getting an account on tech giants’ online services. Imagine if this restriction does not exist. The internet might be less centralized today, the internet giants might not be as giant, and people might use more p2p tech to communicate with each other and might have better privacy because they have less data captured by those 3rd party services.
My friend, that’s just laziness. Most people don’t want to know and don’t care to learn how to use technology. I don’t think we’d be in some Free and Open Internet era had NAT not been deployed, you’d still have people like us with tech knowledge splitting off into our own areas based on that ability and desire, while the herd flocked to the “do it for me” solutions provided by big tech.