I would suggest that the effect of affirmative action is at least as important in pushing men out. I noted when I graduated in 1990 from my MBA - that no men (except one who was both minority and deliberately presented as not cis) got interviews with certain companies, but every minority woman did, and a decent number of other women. This was obvious enough that a female Chinese classmate took me to lunch to express her outrage. I had said nothing, but she made clear she thought this was wrong. There has been a steady dribble of this - for decades. Also - the removal of books that appeal to boys from k-3 is much more crucial. Boys prefer books written in the active narrative for the most part (not the internal feelings one) . My wife went into the school library of our kids' school when they were young and was horrified at what she did not find (she has both an education degree and a Master's in Library science, and had looked at the research as had I). The impact on the boys in that school of buying a few hundred appropriate books was very clear. The lack of role models in schools for boys and the reality of them being graded more harshly and disciplined more harshly is also critical. Yes- fewer boys are ready to sit still at 6 and 7, but that is not the only issue.