Strongly agree with OP besides what is pointed by >>13296
All people have both polarities, but there is some they are more strongly happy with, aka, in general men are happier being masculine while women being feminine.
But both have the two polarities, and fluctuate between them depending on situation, like a woman being masculine focusing on her career or something, or a man being feminine to get in touch with his family, friends, feeling or whatever.
What dictates is whether they feel happy the most and should strive to more strongly in that polarity, specially when it comes to sexual relationships, and that's explain partners with strong polarity, they feel great attraction but a lot of grief if they understand it.
This also explains how some people are naturally homosexual (albeit at a much lower rate than they make it to be), because they are naturally happier in the opposite polarity, there is also some couples which have inverted polarity like a feminine man and masculine woman, and they can be happy like that.
Or people that tend to be balanced between polarities, thus sexually neutral, though what most likely happens is because of society rules, couples get neutral and become unhappy and lose attraction, one of the many downfalls of current age marriages.
And what happens is that current age media and society (going back decades), is promoting the opposite, like man behaving their feminine side, like listening to feelings and soft, and woman to be masculine, like strong womyn of career and all that crap.
I learned all this through a great book called Way of the Superior Man, and it helped me immensely in my relationships since.