After several years of FairTax threads, there is a lot of truth in that simple statement you made. I think you might've hit the nail squarely on the head.
FairTaxers like many true believers in a cause, are incapable of seeing the truth and are completely resistant to any viewpoint that is outside of their preconceived understanding. They are totally illogical when it comes to discussing the subject of their adoration, just like cult members.
Yes yes yes those unedjoomecated FairTaxers! They are the world’s plague!
Yes they be cultish and illogical just like the 64 sponsors of the FairTax in Congress.