Are you for child porn if the child gave consent?
No, not exactly. I believe there is a limit to how much consent a child can give, given their age. Clearly, I don't believe a three year old can give consent and understand the implications of their decision. Clearly as Pwar stated, it is hard to give a definitive answer, and that age is an issue.
However, computer generated child pornography for example, I would have no problem with. Pedophilia is no different that any other fetish, that should be safely catered for. It is unjust to list every pedophile as an abusive, manipulator of children.