Why is F2F seen as socially acceptable but M2M is seen as evil?

[spencer]

I feel like that guy was trying to use wordiness to make it seem like he was saying something intelligent when really he was just spewing crap.

The reality is as long as your average straight-male finds it sexy then it's not disgusting. I've noticed several men who think two attractive females making out attractive but when they see two butch lesbians making out it's suddenly disgusting. The whole gay men are gross but lesbians are okay is a complete double-standard as well as sexism and homophobia towards both lesbians and gay men.

I've also heard the argument from someone long ago that men are born gay while women are never born gay but choose to be usually after a bad relationship with a man.