I think it is something you can lose too.
Maybe. But if it is more of a personal quality, rather than an attribute tied to certain social contructs associated with the male gender, then the concept of what is masculine can evolve.
Our definition of the feminine has been reshaped by women's new place in the world. Our definition of the masculine will shift accordingly.
Not maybe, yes. And I wouldn't mistake political correctness for a full-scale evolution. To assume that the "definition of the masucline will shift accordingly" uses questionable reasoning. Regardless of a "women's new place in the world" the definition of what is masculine will not necessarily "shift accordingly." Maybe just in your house. Overall that's an optimistic view from a professional woman's perspective. Good luck with that.