The issue with your statement is that you're taking the extremists of the hobby and equating every single gamer as part of them. There are far more casual gamers than there are no-life gamers and even no-life gamers very wildly from each other. You're just taking the vocal minority and elevating them.

mentally unhinged

Like I said, vocal minority, these are just people who won't shut up about their hobby, which could be found in nearly any group

turboconsumerist

There's a good chunk of people who refuse to pay for any games and would rather pirate them, even a good chunk of the no-lifers. And again, there are turbo-consumers of practically any hobby you could think of

entitled and sensitive

Again, I'd be just repeating myself pointlessly for these. Most gamers are not like this. Especially since it seems you're not active in any of these groups, you'd likely only see the worst of the bunch being made fun of or just exposed in various ways. None of your statement is exclusive to gamers or even covering a majority of them