Thomas Shey
Legend
Not the person you are replying to, but it's hard for me to see a gaming group breakup as anything other than a social thing, especially for long term groups.
For the game to even be a considering factor, people's experience must be so bad that it outweighs how much they enjoy each other, and someone has to have so much control that they can drive that game's usage in spite of that dislike, and be more committed to the game than to the idea of hanging out with the people who dislike it.
Like, I'm sure this is something that can happen, but it suggests deeper interpersonal issues with the group.
First off, not every gaming group are particularly close outside of gaming, so "enjoying each other's company" can easily be a secondary consideration to "enjoying the game". I know this is a disconcerting idea to some people, but I think calling it a group dysfunction is a bit much.
And as long as GMs have a disproportionate amount of influence in what's played, a pretty heavy degree of control on their part of what gets played is not uncommon.
The usual solution to that described is taking a walk, but sometimes people don't realize how much they'll dislike a game until they've played it for a while, and that can lead to a much more acrimonious disconnection than would otherwise occur. That doesn't seem to suggest anything particularly deep other than people can get grumpy when they've tried to forge on through something they fundamentally dislike.