[null and void]

It does not keep them from attacking children. It further desensitizes them, and increases the odds they will attack children.

We think that.

Is it true? Were there any controlled studies, a group of incipient pedophiles with these dolls vs one without?

Unless and until a trustworthy study is done and independently verified, we're just guessing.

Banning them until they are proven to not increase harm to children is the prudent way to go.

[MrEdd]

No, we are not “just guessing”.

Now the people who defend this crap are (without exception) nasty people who discount what the victims of pedophiles say about the people who raped them as children, and also what pedophiles admit about themselves in rehabilitation programs.