Except that doesn't make it ok. And his other point about it, pedophilia, etc being legitimate sexual orientations that should be declared unfixable is abhorrent. They are mental illnesses that should be treated. One could argue that the porn OP says helps pedos stay on the "straight and narrow" actually furthers the fantasy in the subjects head until they do act on their urges.
And while I'm at it, I would like to note the example at the end of OPs post about Jeffery Dahmer doesn't represent all gays is completely irrelevant. Dahmer was a sick individual with various psychological issues. Being gay isn't what drove him to strangle, rape, and eat his victims, but zoophilia does encourage one to molest animals and pedophilia does encourage one to molest kids. OPs attempt at white knighting is complete bullshit, their arguments are paper thin, and this whole thing could have been completely avoided if they had ever bothered to ask "should I really be posting this?"