Identifying as a gamer is your first problem as you'll lump yourself in with all the cringe losers.

If you like video games but don't care for pseudo gambling nonsense that just makes you normal.

You've got to abandon this weird identity bullshit. Your sex is irrelevant for what games you choose to enjoy, as it is for everyone, so joining a sex based group for it is as stupid as joining a "Men's book club" or what not. Women can read too.

We can discuss demographic differences they certainly exist. Reasons for it range from a number of things, cultural attitudes, sex based differences, can argue any of it, but none of it is relevant to you at an individual level.

I've noticed personally that there's a lot of gays who are nintendo fans. That alone in and of itself is fine as it's irrelevant. But some of them are convinced it is relevant and they start specifically gay gaming groups. If it's a pick up spot? A place to meet up and date, I understand it, but in the past they've claimed that the "gay" gaming group is open to everyone. Despite there being zero reason to call your group gay if it's just about games.

The women's groups are similar. Anyone can play a video game, sex is irrelevant, so any group that delineates sex with video games is automatically needlessly exclusionary and stupid. As such, it's bound to be infested with stupid people who care more about sex than games, and the normal game groups are sufficient for normal people who do not feel a need to be special.