They won't be able to stop it.
A corrupt government can only do so much to protect childfuckers from angry or protective parents.
We're getting very close to the point where many sane, decent people are going to step up and do what it takes to protect children's, no matter what position government tries to take. Childfuckers would be better off if government did its job, which would consist merely of arresting them, trying them, and throwing them in prison. If we, the people, have to address the problem ourselves in defiance of a complicit government, then our treatment of childfuckers is going to be much more harsh than what government would do to them.
And any agents of government who try to protect the childfuckers will likely face the same fate as the childfuckers themselves.