When you look at what happened with the "generation alive in 1914" teaching and how many people accepted that major change without batting an eye, it becomes pretty evident that people will continue to hold onto delusional thoughts forever.
But, right or wrong (and most here know it's almost all wrong ;) ), they exert great control over their followers and it's either you're in or out. Most people are too scared to accept the "out" part that they know is inevitable if they leave.
Brad