Coming from one of these countries to America, the answer seems obvious. STEM jobs have a HUGE differential in stability and status in those countries, so women put up up with much more patriarchal BS at the workplace to hold on to them.
My sister was a STEM worker in India. When she moved to America, she looked around to see writers with relatively safe, high-status job and switched out immediately.
Yes, women in America are "organically" picking non-STEM jobs, but that is because the jobs suck, the environments suck and people are assholes at these jobs. My sister loved the core STEM aspects of her job, but hated the culture of the companies she was stuck working with. This is not "equality", its hostile corporate culture.
My sister was a STEM worker in India. When she moved to America, she looked around to see writers with relatively safe, high-status job and switched out immediately.
Yes, women in America are "organically" picking non-STEM jobs, but that is because the jobs suck, the environments suck and people are assholes at these jobs. My sister loved the core STEM aspects of her job, but hated the culture of the companies she was stuck working with. This is not "equality", its hostile corporate culture.
tl;dr: Ask Women.