This isn’t limited to “gamers” though, if you are part of the privileged imperial core, you are indoctrinated to be a consumerist. Gamers just happen to consume games, but whether you are into cars, guns, pokemon, PC parts, phones, music, social media, clothes, or whatever other fad of the week is, the link isn’t gaming, it’s conspicuous consumption.
As far as the OP’s questions about a pipeline leading to communism, I doubt it. People arrive at the immortal science of Marx by a myriad of paths, many that have nothing to do with their hobbies. Whereas a consumerist constantly has the status quo passively reinforced upon them at basically every aspect of society. It’s impossible to escape, and the only refuge is constant examination through, at least, a socialist lens.
This has always been the case. There is a specific way that congress can put a check on POTUS. Liberals being told how the government works and has always worked, and suddenly getting upset. I’m sure they will vote harder then they have ever voted before to fix it this time.