I'd just have to ignore most "user-generated" content.
Dead Internet hypothesis is only applicable to user-generated content platforms.
AI will affect far more than just social media shit posts, though.
All news (local, national, global). Educational sites. Medical information. Historical data. Almanacs/encyclopedias. Political information. Information about local services (i.e. outages). Interviews. Documentaries.
I mean, all of these can be easily manipulated now in any medium. It's only a matter of how quickly AI saturates these spaces.
Trustworthy sources will few and far between, drowned out by content that can be generated thousands of times faster than real humans can.
What then?
I even worry about things like printed encyclopedias being manipulated, too. We stand to lose real human knowledge if AI content continues to accelerate.
There really aren't viable alternatives to those things, unless they are created (again), like before the internet was used for everything.
So even if it was all just fake content, misinformation, bots, and ads that will never be able to filtered out, you'd continue using it the same?
For me, I'd have no incentive whatsoever to visit a site like Lemmy or check the news if there was a good chance it was just bots making stuff up to fill space. There would be no value at that point, so I'd at least quit that.
I don't think we'll ever fully quit the internet, as it's connected to everything we touch. But the internet as it was will continue to be enshittified until it becomes unbearable to use.