"I wonder if they genuinely believe they are living in a spiritual paradise right now or are they like some fool that's been conned out of their life savings and doesn't want to admit they were taken in?"
Wow Simon! That hit me like a ton of bricks - THAT is exactly what it's like - but even worse. They've been conned into believing they would have their lives saved forever and don't want to admit they were taken in.
So sorry about your father and to hear your mother is so incredibly deluded and twisted - no natural affection indeed.