Reading without reflecting is like eating without digesting.
Edmund Burke
It appears to me that your last chart does not necessarily support your contention. It appears to me to be a chart comparing Male/Female educational levels not the percentage of the population.
Which is meaningless unless woman, and men, are getting degrees in fields that are in demand. An English degree, even advanced, might land you a decent job, an engineering degree almost guaranteed especially for women and minorities.
I am also thinking that maybe men have seen this treand and are going for vocational training which will also land a decent job.
Here is a link to information which may or may not support your contention:
College Enrollment and Work Activity of 2013 High School Graduates