You already admitted there's a difference between attraction and behavior. You even said you agreed with "better pictures than two kids" arguments. So why are you bringing up morality now? Are you turning around and saying it's immoral to feel this attraction, despite the inability to control attraction?
You admit the images can be useful yet apparently want to condem the site for having them.
Argument seems incoherent, like you just want to feel superior to people even if they're not hurting anyone.