You're being stupid.
Human beings can be and are influenced by the things they see and hear. There are ways to exploit this to get them to consider or accept ideas they would reject, prior.
You may think it an abomination that such a thing is done, but that does not change the fact it can be done and there are ongoing efforts to do this on a wide scale.
To the authoritarian, your capability to do things outside their direction is a flaw of the world's design and nothing is kept sacred in the pursuit for control.