I don't know how you believe this nor how anyone managed to agree with it.  All studies clearly say you're wrong, even ones specifically on the subject.  An example: http://opus.bath.ac.uk/21479/

From the abstract:
These results suggest that males and females who have been exposed to higher levels of testosterone within the womb perform better upon academic assessments of Java-related programming ability within computer science education, and have lower levels of computer-related anxieties outside computer science education. 

Numerous other studies showing the personality differences of testosterone exposure can be found here: https://en.wikipedia.org/wiki/Digit_ratio#Correlation_between_digit_ratio_and_traits

This doesn't change the fact there are some women with higher levels and men with lower, it doesn't apply to everyone, but there are DEFINITELY proven characteristics of being male vs. female.