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.
HN has about 1/1000th of that. They do not click every link or make decisions in unison, so the number of people who would interested in such a boycott is probably 1/100th of that. Maybe less.
So, no.