Men and women are not equal. For one thing/person/idea to be equal to another, they have to be perfectly identical. There are no two people (regardless of gender) who are equal.
What is the point of pointing out that men and women are not equal if first and foremost no two people are equal to begin with? What practical benefit does a society gain from acknowledging that on average men and women are better in certain spheres if exceptions exist anyway and those exceptions should ideally be able to pursue whatever they feel like pursuing?