The charlatans woo the masses by promising liberty, prosperity, and happiness.
Madame Roland, a supporter of the French Revolution, who was sentenced for execution because she was a member of the Girondist faction, reportedly said while she was being led to the guillotine: “O Liberty, how many crimes are committed in thy name!” The French Revolution failed to bring liberty, and prosperity and happiness because such things cannot be achieved through philosophical and political movements.
In a free society, there will be hundreds of ways of looking at liberty, prosperity, and happiness. True liberty means controversy about not just the nature and scope of liberty but also of prosperity and happiness. If you encounter certainty about these ideas in any movement, then that movement is not free. It is totalitarian. It is being led by people of fixed minds who want to impose their worldview on all.