Search engines are useful things. They can still exist on a world without ads.
There are many many examples of useful services (both private and public) in our own world that manage to exist without the need to get plastered by obnoxious ads.
The reality is you can choose to have your dream reality right now. Pay for Kagi, pay for ad free streaming or buy bluerays, stay of social media or subscribe direct to your content providers in patron.
We don't need to remove free access just so a few people can go ad free. Those people can already do it they just choose not to