plenty of people desire something like this, and 'saving the children' is their genuine intent and desire. Humanity is willing to shoot itself in the foot again and again, there's no need for it to be some shadowy cabal.
Plenty of people do want more surveillance, but that's not why EU politicians are doing this. Seeking to implement surveillance across an entire continent cannot be explained by "the will of the people". Danes might want surveillance for their children, but I can't imagine them lobbying their EU representatives to also protect the children in France as well.