Why do gamers tend to be reactionary...

Video games were born from universities at first so the tech is not thanks to capitalism.

If you mean the video game industry, then you'll have to explain to me why do you think the current state of the industry is worth defending.

People who play video games with extreme regularity are seeking an escape from reality. They tend to dislike the symptoms of capitalism but are unaware of the cause since they are avoiding it in the first place. Not everyone is naturally analytical but even is someone is, they might not have the time nor the willingness to delve deeply into politics and economics, much less so if they find it easier to avoid it altogether by escaping into a fantasy world. With this is mind, does it surprise you at all that they would be attracted to reactionary politics?
Criticizing or mocking their hobby will only make them more attached to it as part of their identity, not to mention that it completely ignores the fact that they are alienated.

Tetris

And a billion freeware games.

yikes @ every word of this

piracy renders all genres equal. ridiculous amounts of free time to spend on a game hint at not being working class, given y'know, 24 hours in a day and the working class gotta work. funding your fursuit with fighting game tournament money does not a proletarian make.

I'm on disability and I play games a couple hours a day.

I'm a leftist and I play a few games. I also post on the internet, by the way.