I think tools for detecting and filtering out ai material from search results would go a long way to improve the current situation, and is a middle ground between an internet revolution and a technological dystopia. There is still an unfathomably large amount of good information on the internet, the issue is that there is 20x more trash. And the trash is scaling rapidly, humans are not.
If you haven't already, give the Marginalia search engine a try. They're doing something interesting in this space. You can filter out results with javascript, affiliate links, tracking, ads, and cookies. After filtering, the internet feels a lot more like it did 20 years ago, more sincere, more human.
If I recall correctly, Marginalia is made and maintained by one guy. As the trash to good content ratio worsens, I think more people will want to build on and use projects like Marginalia.