https://news.gallup.com/poll/609914/women-become-liberal-men-mostly-stable.aspx
a widening of the ideological gaps between men and women over time has been due to women becoming more liberal at a faster rate than men, rather than women and men moving in different ideological directions.
https://www.zerohedge.com/political/us-women-have-become-more-liberal-men-remain-stable-gallup
Discussion
Other sources I have seen suggest this is mostly a bachelor/ette problem. Both married men and women stop adhering to their respective ideologies significantly.
It appears people may be subconsciously attempting to satisfy their instinctial drives with political systems instead of with people.