I can only provide my own thoughts; I feel that it is a combination of power dynamics in social relationships and the biological urge to reproduce.

Most humans are hardwired to produce offspring. It is such an innate part of our make-up we aren't entirely conscious of all of it, and our societies and cultures are based around the family and raising children. The truth is, up until very recently with the advent of technological advances and the Industrial Revolution, men and women, and their negotiated roles that were practical and based on biology, were incredibly dependent on each other for survival.

Men have benefited far more than women from this arrangement, of course - it seems to me the institution of marriage has been generally disadvantageous to women throughout history. Might makes right, though, and we are not at all far from chimpanzees and gorillas in how we interact with each other.

What it means to "be a man" weighs heavily upon male humans. Social standing depends upon it. If a man is seen as weak or 'womanly', he moves down on the social hierarchy. We're all just navigating power dynamics, and I have seen men become absolutely enraged if that is challenged. A man, who is not manly, and who challenges another man's manhood, is in a dangerous position.

Women, on the other hand, are property, and their sexuality is at the service of the community. Across cultures, men view a woman's unrestrained sexuality as a highly dangerous thing. She is wild and primal and must be tamed by the male principle (men have apparently always thought their dicks can save the world!). It's also far far less threatening than male homosexuality, and human society is pretty patriarchal. Which is why there is just not a lot of lesbian or wlw documentation throughout history - Ancient Greece and Rome are full of accepted pederasty and male lovers, but lesbians are cloaked in the shadows.

As far as the Christian West goes, there's also something to be said for the condemnation of homosexuality by Christianity. Up until Christianity took over Europe, homosexual relations really weren't that big of a deal. However, I do think that a fair portion of what Christianity was trying to put an end to was pederasty, and it became conflated with adult homosexuality as well.