Nature -- nurture -- yes, it's some of both.

But when you say we have control over nurture, that's not quite right, imo.

Culture moves as culture moves. It evolves on its own, pretty much. It's not controllable. Evolution cannot be controlled, really. If you cut off the tail of each lab mouse that's born, that doesn't cause later mice to be born with no tails.

You cannot enter a native village and 'tell' the people having those tall rings around the necks of the women, are not 'sexy.'

As I said, what is considered the 'ideal' of sexual attractiveness is ALWAYS culturally induced, and almost NEVER has anything to do with what is 'normal,' average or even natural. It is a manifestation of the 'cultural norms.' These evolve on their own, at their own pace -- often inexplicably, and not based on 'reality.'

And when you say: Last I heard... the biggest market for gay **** is.... women! -- that still does nothing to compare the % of men who 'use' **** to the % of women who do.