What Causes HGP?

I assumed it was just like being gay you just you know this is an attraction you're born with more or less right there's a question of you know what causes HGP. I subscribe to the idea that HGP is mainly the course of the associated gender issues and not the way around so I assume what cause HGP is just having eyes and being able to tell that women are sexy and awesome but I'm wrong about this well a quick note cute isn't the only definition of attractive right Chris Hemsworth isn't cuteSo I think nobody really knows what causes H GP I mean we don't even know what causes trans sex you know you can take homosexuality right nobody knows what causes homosexuality but