The purpose of feminism is not to treat men and women the same. The core problem of feminism is to redress the natural imbalance of reproductive costs and decisions, which biologically fall almost entirely on women. As such, feminism has to be an “affirmative action”, not an “equal opportunity” movement.
For a woman, a chance at reproduction is as good as assured. For practical purposes, she can make her offspring herself. However, on her own she would face the entire cost of bearing and raising young, which is enormous. A man’s reproduction is not assured. He has to find or make a woman willing to have his young. Beyond that, only social and emotional factors motivate the man to share into the costs of raising the offspring, and the man needs high confidence of fatherhood before competing on their behalf for resources and power in the world. This is the natural situation, devoid of any value judgments. Nature lumps all the costs, but also the decisions, on women. Feminism is the attempt, throughout history, to balance the costs with men.