And the same could be said for other fields. Step in to a construction site/auto dealership/mechanic shop/sports field and tell me how many women you see. Are all those fields dominated by sexist men as well?
And for men, how many are nurses/teachers/social workers/counselors/human resources vs women? Are all those fields dominated by sexist women?
Could it be that women enjoy jobs with more human interaction and men are more content to sit in front of a computer screen?