What do you feel is the important distinction between "touching" and "actual penetration"? I'd think they both would fall under the same category of "child molestation".
A kid touching a mans penis maybe barely aware that the man is getting aroused vs. a man penetrating a little kid.
They both fall under the same category but they are two very different things.
Also don't forget that a big part of the issue with pedophilia is actually society which because of the tabu and inability to distinguish between the different types of them ends up making the experience even worse and further adding to the problem.
And again I am not in any way defending this behavior, I have kids myself. I just believe that the very thorny subject requires more careful thinking than just calling evil.
We might find the people watching child porn disgusting but they are after all only watching and not necessarily doing anything resembling rape porn.