It's not complicated. Don't mock people, don't underestimate people. Making fun of another culture you don't know about doesn't come close to justifying this innate nature of gender bias - both are bad. And no amount of "gossip is a form of superior habit and I am all for it" will turn the tide on this. Just don't be shallow. It's simple
Discussion
My thinking on this is wildly divergent from yours. We could argue it out if you want. Otherwise I'm happy to just disagree and move on.