Why They Worship Bryan Theory
The people of -- Arizona worship Bryan because he is the one true god. He represents all that is right and good in the world -- our childhood, snuffed out by the mental strain of Tanzi, or adult responsibility. Just as the people tried to rid their town of Tanzi, so do the followers of Bryan try to regain their innocence by crying out against Tanzi and upholding Bryan. Yet, we cannot regain our childhood and trying only makes us more and more frustrated... we can band together as one, but you cannot reclaim what has been lost.
At its earliest stages, the Bryan religion was pure and clean. But as with any religion, it became corrupted along the way, and the acolytes lost the true meaning, turning to violence against those who could not share in the (once pure, now false) vision of Bryan (childhood). We all long for Bryan to be reborn, but most of us are not as devoted.
Why else would they worship Bryan?