This isn’t just about losing your Facebook account. It’s about what else you can’t do because much of our society relies on Facebook. This is the real problem. From TFA:

This article is not a complaint about Meta; it's a wider discussion on how we as a society have allowed platforms like Facebook to become borderline necessary to participate in society. It's about how a company is allowed to be the sole decision maker in whether you can participate in those areas of society.

Through network effects, Facebook, Google, and friends have created a centralized version of the Internet, only accessible through them.

We're in a situation where companies have managed to embed themselves so far into society, that they're acting like providers of social services.