I find this argument persuasive but I think it's incomplete. I can't complete it, but here's what I like about your rhetoric:
When I fell for right-wing crap, I was snapped out of it when their debate opponent showed them to be spineless, cowardly, and hypocritical. He didn't say they were, rather used a... tactical approach. To get me to snap out of it and make the conclusion myself.
I especially like the argument that we are all ripe to be conned and critical thinking education can help save us. This mimics the strongest pro-sex education argument. It can prevent abuse.
And on "you can't use reason" - I've recently come across the idea that you can't logic your way out of mental illnesses, and logic can actually add to the problem. This is... probably also relevant to those who are tricked by this.