Also: The gaming industry is kept alive by the millions of consoletard millennials buying the yearly Call of Doody and FIFA/NBA Slam [CURRENT_YEAR]. Not a few basement dwelling weeaboo incels jerqing off to their waifus.
I already stated that I don't believe in Linux doing anything mainstream any time soon, but I disagree with your statement on a certain level : you act like "THE GAMING INDUSTRY" is a singular block, rather than multiple entities acting in multiple niches. The retard buying Call of Motherclucker and FIFA is not keeping the games I care about alive. Not even in an indirect (through publisher support) manner. You could literally destroy Ubisoft, EA, Activision and Microsoft as publishers and there wouldn't be a single game lost in my current library/backlogs of games I care about. I don't even have Ubishit or EA's clients installed. I momentarily had origin to try a few of their FPS then uninstalled out of lost interest.
The dude buying Call of Homo is not the dude who keeps From, Capcom or Nihon Falcom alive.
Steam is the only necessary evil I allowed on my computer and I don't feel that pressed to budge. There's more games in my backlog than time I have to play them all.
So, I don't care about that segment you state "keeps something alive". That something isn't even worth existing in the first place. It can burn in a fire for all I care.