Everyone is susceptible to brainwashing. It's also called "indoctrination". Smarter people (or people with better critical thinking skills) are less susceptib

Everyone is susceptible to brainwashing. It's also called "indoctrination". Smarter people (or people with better critical thinking skills) are less susceptible. But no one is immune; if people hear the same thing over and over again, eventually it'll influence them.