Gamer Gate stems from the Men's Rights Movement, it was largely them who pushed back so hard and got the whole thing started then provided the arguments against Feminist/SJW corruption in journalism, after that it took on a life of it's own.

Paul Elam, the guy who first used the RedPill from the Matrix movies to explain the leftist dystopia we live in, and of AVFM https://avoiceformen.com/ had been battling Anita, Feministing(who they destroyed), SPLC, Universities, Family Law etc.. with the use of rude/offensive/in-your-face language and facts to unapologetically dismantle the leftist harpies for years, not entirely unlike Andrew Breitbart.

Along with other notable people like "Girl Writes What" (Karen Straughn) https://www.youtube.com/user/girlwriteswhat and then others who came along a bit latter like Proffessor Janice Fianmengo of Studio Brule https://www.youtube.com/user/StudioBrule

If you dig into it you'll actually find that this movement has been alive and well for a very long time, a guy named Ernest Belfort Bax (1854 – 1926) wrote a bunch of books on the topic like 100+ years ago, then add in people like Alex Jones or books like None Dare Call it a Conspiracy, Creature from Jekyll Island, McCarthy, Yuri Bezminov, Charlie Chaplin, JFK.. pretty interesting stuff to follow imo, especially once you factor in climate science and Christianity, soooo many movements all coming together to support the truth and fight against degeneracy and corruption.