Every time I search something, I open a fresh private tab and google it. If I want to turn safe-search off, I'd have to go through this code verification flow for every single search. Aside from just being annoying, they'd have to implement strict rate limiting to prevent automated code sharing, so I'd soon end up waiting for a rate limit to expire before I can search anything.
And "the government will know you've authenticated with pornhub" is extremely harmful, in my opinion.
Sadly we got to this place because there are other harms that are occurring and those are forcing this conversation.
The "other harms" are made up fearmongering by rightwing cowards and incompetent parents.
Hah. I wish.
I have personally had to remove NCII for teens and young adults. Grooming is a thing, self harm communities are a thing, as is sextortion.All of it at internet scale.
And this ignores the parts where the platforms released features they knew from their own tests, were harmful to teens.
It is convenient to dismiss them, because it makes it easier to hold positions that depend on them being minor harms.