I don't think there is a threat, but it does ignore the fact that men and women are different. For example, men tend to be more competitive, negotiate harder for pay rises. Women tend to like more flexibility in their work.
Some of us think that the fact that there are fewer male primary caregivers isn't a problem to be solved, but natural given the natural preferences of men and women in general. I think there are many more women than men working in pre-school education for a reason. Furthermore, many women are made to feel ashamed of their desire to be housewives, think it is some failing on their part, and end up seeking a life-consuming career -- not because they want to, but because society tells them they should.