中国硬核理工女生比例比美国高多了. 中国45%，美国35%。而且美国是在招生，招工Gender AA的情况下

加上在母国完成本科理工教育的女性移民

如果只算美国本土教育出来的stem女性，应该更少

Female science workers make up nearly 45 percent of China's science workforce and have made key contributions to manned spaceflight, space exploration, computer science, medicine and other fields.

In 2021, about two-thirds (65%) of those employed in STEM occupations were men and about one-third (35%) were women (figure 2-3) in US

Women in STEM have diverse racial and ethnic backgrounds, however, most of the women working in STEM are White (66.02 percent). Comparatively, there were: 14.58 percent African American/Black, 0.97 percent American Indian/Alaska Native, 9.76 percent Asian, and 0.28 percent Hawaiian/Pacific Islander women.