> Except the gender ratio in science/engineering is anything but universal across cultures. 70% of science/engineering students in Iran are women: https://www.forbes.com/sites/amyguttman/2015/12/09/set-to-ta.... Indeed, in many parts of the world that are not known for being "liberal" with regard to gender equality, women make up a significantly higher percentage of the scientific workforce than in the U.S.: http://www.catalyst.org/knowledge/women-science-technology-e.... (44% in Latin America, 40% in Eastern Europe, 37% in the Arab states).

Later in the document he goes on to point out that gender disparities are greater in more liberal countries (e.g. great disparity in US than Iran, greater disparity in Finland than in the US). Interpreting this as our culture being somehow more oppressive (and then Finland's even more so) requires an "impressive level of intellectual contortion" - if anything it seems to be evidence that there are differences in preferences, and therefore greater freedom -> greater divergence.