Ooh, that's interesting - it makes sense to me, though, since the less cushion you have, the more you need everyone to pitch in as much as they can (regardless of gender) - sticking to rigid roles in dividing up the workload seems like something you could only do if you could (literally) afford to be choosy about what gets done when and by whom.
I definitely felt disappointed when I moved to the West Coast that even though the LGBTQ scene is so much bigger here than in Texas, it's also way less close-knit - much less of a "we're family, we look out for each other" vibe than I was used to. I wonder if that's for a similar reason, like you're saying - you can afford divisions when there's less hostility and the stakes are lower, but when circumstances force everyone to be in the same boat, people act accordingly.