If you want “papers, please” every time you back out of your driveway or go beyond your government-assigned oblast, then your suggestion is the digital version of the physical authoritarian nightmare that was imposed by totalitarianist regimes throughout history.

People have a right to complete anonymity, and should be able to go across the majority of the Internet just as they can go across most of the country.

That’s what you are missing.

Don’t get me wrong, I am also in favour of a single government ID, but in terms of combatting identity fraud, accessing public resources like single-payer healthcare, and making it easier for a person to prove their identity to authorities or employers.

It should not be used as a pass card for fundamental rights that normally would have zero government involvement.

/s?

You may be missing that it's easy and free for website owners to fix the problem. But it's hacker news after all. If somebody is bothered by a leaf falling on them on their walk to the corner store, the suggested solution here will be to have a full communist revolution.