Fine. But what does that mean?
God made them male and female - there are (or may be differences). And the theological reason why women cannot be ordained is.......
I note that the traditional "male and female" are different arguments always (surprisingly!) attribute negative and subserviant qualities to women and positive qualities to men. Women are "nurturing", men are "decision makers"? Perhaps that was God's intention. In which case let's declare it.
I do not argue (essentially from psychological and sociological and linguistic research, with all of which I am familiar) that there may not be gender differences.
But there are also differences between men.
What is the theological reason why women cannot be ordained? Or, if we are to be technical, what is it in the ontological nature of women that makes them deficient such they cannot receive Ordination? Let's leave aside the "equal but different" arguments (that had a good run in the argument for slavery). What is the "defect" that enables inadequate, incompetent men to be ordained that prevents competent, holy, highly educated women from being ordained?