My vector into feminism was through that gamergate thing, as being a gamer myself, I was used to videogames being blamed for every social blight that exists. I recall in the 90's when it was all about violence and all the data refuted the media hysteria, the same thing happened again with the Anita Sarkeesian woman and now suddenly the assertion that we're responsible for men being dicks women really grates, because I do not believe that games make men/boys sexist.
I will state flatly there IS sexism within the gaming community, I can point to examples that Anita missed, but my 'lived experience' is that it's not necessarily out of proportion with any other section of society, and certainly not causative I would genuinely like to see more women feel welcome within my hobby both as consumers, and creatively. Some of my favorite games have been designed/written by women.