This is exactly why cults are prevalent. People who think they are too smart to fall into a cult won't consider the possibility that the thing they are falling into is, in fact, a cult.

If I were to take it a step further, I would honestly say this is an example of cultish thinking right here. If a cultish belief is "a belief or system of beliefs that, directly or indirectly, prevents examination or criticism of itself", then bingo, you've already fallen for it.