I've said it before and I'll say it again. The real zombies are so desperate in their need for salvation and an after life, any suggestion that death of as the final outcome is terrifying. They would rather hang on to an illusion and lie to their children (depriving their kids of a chance at a full, meaningful life) than admitt that like all things on this planet - even mountains - they will succumb to time. The mentality of clinging to a lie is almost impossible for the most enquiring mind to comprehend.
By the way, the fact that their cult is based on a foundation of lies means they aren't offering anything either other than lies. And they want to go door to door and lie about a false hope and deprive others of a shot at a fulfilling life.
Forget them, let them waste the only life they have in favor of the belief they'll get an eternal pass to Disneyland. I would rather spend my time helping those seeking reality and warning those not in the Org yet not to fall for their sadisctic jargon.