I don't really get it either, I don't think it's super controversial. I think there's an angry mob going after Google and anything not going in that sense is aggressively downvoted.
I think that the anger is justified but it doesn't justify making up poorly substantiated conspiracy theories. The hard facts are enough to see what Google is doing anyway, no need to write fanfiction.
Speaking of hard facts, I'm sure that before you decided to call my claim a "poorly substantiated conspiracy theory" you have verified that Google does not alter search results based on user-agent, i.e. by doing the same searches in blank installs of Firefox and Chrome on the same computer, right?
I think that the anger is justified but it doesn't justify making up poorly substantiated conspiracy theories. The hard facts are enough to see what Google is doing anyway, no need to write fanfiction.