When explaining the GMAE to normies,I like to contrast it with everyday interactions.

"How many times would a friend have to lie to you before you stopped believing them? What about a stranger? What about a person whose sole job is to tell you the truth?"

You come to find out that people trust news media or "experts" in a way that they would never trust family, friends, or strangers. If you ask these people why, they usually have no explanation.