Men

[Mello-kun]

Another question, I'm not sure if this is considered psychology or not but it still has to do with the mind and thought processes.

Bearing in mind I don't mean all men, because I am technically a man and I don't think like this.
Take this, a man will find lesbians hot, yes? But when it comes to gay men, they frown upon it and act as though it is unnatural.

What is it that makes them think that way?

[Enigma]

I don't think homosexuality is unnatural, but I prefer lesbians over gay men because lesbians have tits and vaginas, whereas gay men only have penises. 

[Karaten]

It's not that Homosexuality is unnatural, as it occurs in nature all the time, it's simply that it holds no advantage in modern era. Ideally, I think homosexuality would occur simply because nature doesn't mind it. That being, there's little harm in something having sex with one of the same gender, and it's also an excellent way to deal with overpopulation without killing or restricting sex within the populous.

That being said Lesbianism could simply be a fetish, or it could have something to do with the Male inclination for multiple partners.

[voodoo scientist]

It's simply not possible to make a case for homosexuality being unnatural. Anyone who claims as such must be doing so from a flawed or outright irrational basis. In my experience, the most common reasons for making such a claim is positive social feedback (in which case they may as well have bashed "the commies" for being "evil") or sexual insecurity, though the latter is less common than you'd think. In plain speak, bashing homosexuals is most often done because it's a fun activity most heterosexual males come together on (see what I did there?).

Thus, there's no real connection to lesbians. The correlation between them - they're both homosexual groups - is irrelevant, because men aren't attracted to "homosexual women." Men are attracted to "attractive women", which is why most porn lesbians look somewhat different from real life lesbians.