Sadly, everybody using a browser from a massive ad company and an idp (not to mention a company with an interest in crawling the entire web for AI at the same time site owners are dealing with better scrapers) means the entire web will be login-only over time.

The irony is that the same companies pushing us toward login-only everything are also the ones best positioned to survive it

We're quite a few years into this period of technology. At a certain point, these "AI is going to kill the web!" predictions either need to come true or just be dismissed as false.

I don't see how those points bolster your conclusion. These pressures predate AI by over a decade and haven't forced a significant tidal change in the way the internet is used.