There is a book called ‘Crystalising Public Opinion’ which depicts a compelling narration of how after WW2, the ‘elites’ concluded the people could not be trusted to vote.

The idea was simply that their vote must be directed from the elites.

i.e. you think you vote for your interests and self determination, but the information you use to decide on the vote is manufactured for you.

That process started in the early 20’s for advertising purposes to create the consumer. It was expanded to cover a broader range post WW2 when Edward Bernayse realised if you could use ‘propaganda’ for war, you could use it for peace and compliance.

I think you would like that book.