The gullible layman is only gullible because the education system has failed.
I see your point, but disagree.
Gullibility has many root causes. In my case, my fascination the the JFK Assassination and subsequent descent into CT-Lunacy started with my father.
"There's just no way one guy could have pulled that off," he said. I was 6 years-old, and my father (I thought) knew everything. He'd been in the Army, he'd been a medic, understood bullet wounds and so on.
The problem is that dad never served in combat, and never had his hands on an open wound. He did see thousands of color pictures in Combat Medic School (or whatever they call it).
Dad's other handicap was shared by the rest of the country:
He wasn't in Dealey Plaza when the shooting took place.
One of the reasons the JFK CTs were able to gain such a vast foothold was that they took place in a giant gray area. It didn't happen in front of a lot of people, and was not on live TV. Just think about the stories that would have been up made about Oswald's death had it taken place out of view instead of live national TV. There were stills from the Zapruder film made public and published in a number of books, but people never saw the film until 1976.
By then, guys like Mark Lane had done their damage. By then we had come through Vietnam and Watergate and had zero trust in the government.
There were and are a lot of smart people who believe Oswald had help, or there was a second gunman in Dallas. Their gullibility stems from ego, and trusting the wrong sources.
My failure was that I assumed that the people writing the CT books knew what they were talking about, that they had done tests, that their sources were reliable, and that they were objective....I was so very wrong.
This was instantly apparent when I went to Dallas and stood on the sidewalk in front of the Grassy Knoll. It was obviously an easy shot, not seeing this while standing there would be a sign of mental illness. 300 feet for the headshot? EASY. Someone behind the picket fence? NO WAY.
Seriously, a guy firing from the picket fence would have been caught in five minutes or less BECAUSE HE WOULD HAVE BEEN A GALACTIC IDIOT. I mean, hell, why not bring a marching band with you if you're going to fire from the Grassy Knoll? You'd be that obvious.
My failure was I trusted people. Like Neil Simon said in "Biloxi Blues", people will believe anything they read because if it wasn't true it wouldn't have been printed. The intellectual disconnect is that CTists will eschew the "Official Story" without bothering to read it.