Hello Jill,
I think sexism is life and well in the United States. I specifically state 'US', because it is even more prevalent in other countries. Sexism is not just confined to diving, as a female physician I get it all the time. Mind you, I am being discriminated by other FEMALES! It is in the female group that I am being called or addressed by my first name when my male counterparts are referred to as "Dr. ....". I don't have a bug up my A.. about it, but I feel that I am being undermined by FEMALE nurses more so than male nurses.
That may be different in diving, especially in tech diving. As you well know, there are not a lot of tech diving women out there. If the numbers are still correct, there are only 33 % female recreational divers and maybe 10-15% female tech divers. Break that down even further into CCR or CCR cave, the numbers are even lower. Now personally speaking of course, I don't get discriminated against by other male tech divers as much as by male recreational divers who don't know who I am. When I was diving doubles, men would offer to carry them off the boat for me. My typical response would be: "If I can't handle my gear, I don't dive it".
I do find it amusing how some guys want to fuzz over a woman's gear but never offer to help another guy diver.
A lot of curbing 'sexism' has to do with how we women relate and react to it. I think women have a responsibility of taking care of their own gear! Unfortunately they are moving themselves into a "helpless" position by not taking that responsibility seriously and keep on depending on the "guy" to take care of technical issues or whatever. As much as I dislike this phrase "Be your own man", there is a lot to it.