When I look at Google, I see a company that is fully funded by ads, but provides me a number of highly useful services that haven't really degraded over 20 years. Yes, the number of search results that are ads grew over the years, but by and large, Google search and Gmail are tools that serve rather benevolently. And if you're about to disagree with this ask yourself if you're using Gmail, and why?
Then I look at Meta or X, and I see a cesspool of content that's driven families apart and created massive societal divides.
It makes me think that Ads aren't the root of the problem, though maybe a "necessary but not sufficient" component.