Do you have examples of lies that the majority was indoctrinated to believe?

Religion.

The fact there is intense disagreement about what is “obviously true” between countries shows that this is still happening.

The beliefs of the masses are simply shaped to suit political interests.

Concrete example: “boys should be circumcised”. If the answer was objectively obvious to educated people why does the US have such a different position on it than Europe?

Any mythic/causal statement (lightning causes fire) is a lie of folk science.

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Belief in western liberalism and democracy