People who are aware of how pervasive tracking is wouldn't mind much indeed. The average user would be _infuriated_ of having to login every time they open a tab.

That's where LastPass, et. al. come to the rescue. Minimizes the annoyance of multiple logins, while increasing overall security if they didn't already use a password manager.

Minimizes, but does not remove.

I'll stick to Chrome when I want my browser to not lose my sessions constantly.

There's only so long that all those angry, multi-tabbing, somehow-simultaneously-both-ignorant-and-power users will be infuriated at every single website before they forget it ever wasn't like that.

Even if credentials were stored in browser (ideally has a revocable token, not a password) and login was one-click?

Average users know how to use multiple tabs?