Male and female are very dismorphic, we cannot change that easily, male and female have very specialized roles and purposes.
Yes, I am happy that people now in general have more equal opportunity than ever, and that we can have awesome workers on some areas from any background, but we should not push it too much now, society now is already very different, and failing in some aspects, more equality won't make things better, but can make things worse, much worse.
Understand that past societies were not forced to be the way they were, they just changed until they settled on something that works, and it worked for good reasons.
Why several societies in the world are severely against gays, especially male ones? It is because it was very important on these societies to have children, not having children was unacceptable. Today having children became too expensive, so the focus of relationships changed, and now several countries even allow gay marriage or civil union, but the need to maintain your population don't changed.
Some people will argue about over population, yes, I agree that it is a danger, but we must remember that we are not even replacing our populations, we are outright declining, and the result will be some cultures disappearing, and others with higher birth rates taking their place.
The funny thing about equality seeking cultures, is that they tend to erase themselves and give way to totally non equal cultures to take their place.
People forget that we still live in a world, where in many contexts, might make right.