This is a categorically false premise. The kind of statement that only makes sense when you're in a deep bubble and entirely removed from the average person's use of the internet.
Deliberately removing yourself from Google is fine for the author who is more concerned about taking an ideological stance than they are about being discoverable, but removing yourself from Google is terribly bad advice for anyone who wants to help people find their content.
Many people do use Google to find content and people, even if you don't.
Not entirely false, I would say. I see more and more non-techies getting tired with their search results, instinctly expecting to see a variety of poorly-formatted, extremely poorly-written, ad-ridden sites.
I believe more and more people will wake as Google pushes the boundaries of good sense. This will lead to a decrease in qualified traffic, but that won't demotivate Google -- anyone who already ran ads targeting a niche public knows that Google will burn your monthly budget, and they won't hesitate to override your parameters to make that happen.