Divide and Conquer is very simple: you can’t persuade everyone, so you split them into two groups. You condemn the other group, and with your influence as an adult, you persuade the children under your care to become one of you. Like Pavlov’s dogs, children can be easily conditioned to be loyal to their group.
First divide, then conquer. It works very well, we see it everywhere. In the end we appear to live together, but in our minds we are all divided.