The world would be dull if we all agreed.
MKUltra. Brainwash individuals to be "sleeper" agents without them even realising. In case they do remember, make sure they don't survive.
Religion is used to sugar the pill. Re legion has always divided differing people, so "they" use it to keep the masses distracted and divided. They get the sheeple to demand something be done. Then they bring in their original plan.
We are slaves of our own making