I could have sworn I already did this, but......both homosexuality and pedophilia are sexual attractions, or paraphilias.
Here is a list of common paraphilias.
http://en.wikipedia.org/wiki/List_of_paraphilias
Pedophilia is still on the list, but homosexuality was removed from the Diagnostic and Statistical Manual of Mental Disorders in the third version, due to becoming more common. They are still sexual attractions. I'm fuckin spelling it out in crayon!
Gays are attracted to men
Pedos attracted to kids
It's already been said that men have the choice when children don't, but they're still sexual attractions. The question wasn't if the two are exactly the same, the question was if they have anything in common, and they at least have 1 detail that is common. Good enough for me.