I’d have to agree. I encountered a little bit of prejudice as a woman scientist in training when I was in graduate school many years ago, but it was nothing serious, nothing problematic. I made the choice not to put in the 16-hour days and 7-day weeks my male colleagues put in. Could not see any way to raise kids, keep a husband, and still do the work a serious career in science required. It would also have demanded a gypsy lifestyle for some years after getting a doctorate as I would have had to do some post-doc fellowships in different places, and that wasn’t practical for family living either. Finally just accepted that there were a lot of other fascinating things I could do that didn’t involve locking myself in a lab a hundred hours a week.
But it was my choice, and I was not forced out of science by male chauvinists! Some men were extremely supportive. As long as a woman actually does good science and doesn’t try to use her sex, she will find her male colleagues helpful.
In my early-20's, I got the opportunity to do some cutting-edge development. We pretty-much lived at work, going home to sleep. Then later there was lots of travel, dealing with customers. It's easier to find a guy, especially an unmarried young guy, willing to accept that lifestyle.