I think inadvertently found some insight on this. I’m typical and have failed to maintain friends over the years. As an old dad who’s spent a lot of time at kids parties talking to men; men just aren’t that pleasant to talk to. Best case is we’re opinionated, myopic, closed off. Worst case ignorant and obnoxious.

There's an element of competitiveness, too. I worked in a hotel, mostly with women. My supervisor, a woman in her 60s, praised me and the other male workers, saying that the women were jealous, rivalrous, and always fighting amongst each other. "Men are easy!"

Meanwhile, I had no problem working with any of the women (although it's true, they were cruel among themselves), but when I had to interact with men in other departments, it felt like some macho standoff. It's like when you go to shake a guy's hand, and he pulls your arm and crushes your hand, but baked into every interaction.

I think I agree.

I am lucky not to have friendship struggles; I have a vibrant social circle with close male and female friends. I talk with my male friends more often, but the conversations are not very meaningful. For most of them, it is hard to break through and have talks that require vulnerability. I don't know why.

In contrast, my close female friends are great in this regard. They are open, empathetic, and kind. The conversations I have with them often leave me feeling a stronger connection. They are far more substantive.

And yes, some of my male friends are ignorant and hold (IMO) ugly opinions.