Is it because they are perceived to be female centric and thus "gentle
I think for me it's because I don't tend to think that it would normally inherently center a lot of politically fraught subjects.
I used to hook rugs with a hooking group on a weekly basis. It was a pretty involved group, rural, many of the women had known each other their whole lives but they were very welcoming to newcomers, a variety of backgrounds. We'd also take car trips together a few times a year. Age range about 30 to 90.
Occasionally there would be some political talk, local or higher level, but if it looked like it was going to be really controversial it would be left aside. But we talked about our families, local events, funny stories, and a lot about wool, hooking workshops, etc.
I guess maybe the difference is we all were really in a room together, and knew people were kind and would always put themselves out for you, even if their politics were screwy or they were grumpy?