Why do followers of Jesus allow children to be harmed?

 Jesus loved children

Mathew 18:6 whoever causes one of these little ones who believe in Me to stumble, it would better for him to have a heavy millstone hung around his neck, and to be drowned in the depth of the sea

Why are Christians impotent 

Why do followers of Jesus stand by and do nothing to defend the innocent that Jesus loved so much. Because they do not know the commands of Jesus telling them to judge and act

What action is required

Followers of Christ must know scripture - So they can behave as Christ wants them to and not follow society. 

Followers of Christ must be salt and light - So they can affect society as needed
Followers of Christ must know the laws protecting minors so they can push the police into action
Followers of Christ must know the law so they can sue the orchestrators into oblivion