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.
Personally I tried to switch many times and always made my way back, and I'm not even really in the Google ecosystem unlike others.
Anyone who has thought google was doing anything good after they bought doubleclick is living in fantasy land. They pretty much immediately started playing advertising extortion games and they optimize for more viewed google ads with things like AMP and making ads harder to notice. Google stopped caring about "information for all" the second after they made their original research paper and realized they had a significant competitive advantage to make some money with.