I think the most dangerous basic belief(s) are related to what is termed "herd mentality". Sheep are not known for their independent ways. The flock moves East, and they follow. It moves North, and they follow. If there is a black sheep that moves the other way, they either envy it's independence, or it's courage or whatever noble intention causes it to do so, or they assume it is just vainly trying not to be a sheep, for the purposes of attention or pride. Not many are willing to be a loner, outside the social and psychological security of the flock. So the sheep follow their shepherds into wars, to killing other sheep from other tribes. Into immorality because discretion and prudence is bigotry. Into false beliefs because they wouldn't dare to question the narrative being fed to the other sheep. Into folly, because their shepherds are just there to fleece them, but they are much more concerned about being called a "conspiracy theorist" or an "anti- this" or an "anti - that" - because the current mind control machine has convinced them that anything is better than that. Please, shut off your mind. And they do. Switch the dial.