These "satanists" are all low self-esteem losers. Notice how all of them are ugly and cannot attract the opposite sex. They have failed at their gender and now they hate the world. They release their self-hatred onto others, and who can they hate that will always give them a win? Helpless babies and children.

Attacking these innocent kids gives them the self-esteem boost they need. It makes them feel strong because if they were to go against anything else, they would get pummeled.