While I sympathize somewhat, I suspect (most likely due to my own biases) that there is a strong economic class component to this trend they note. I think it's more likely that wealthier men from wealthier families are more likely to end up enrolled in college than poorer men or men or boys who come from lesser means.

Like everything in America, just focusing on ethnic or gender groups before class doesn't really work to reverse the more real disenfranchisement that exists in society.