The feeling of closeness, camaraderie, friendship with like minded people you could trust.
To not say that was a byproduct of the cult would be a lie, it is. Keep in mind other high control groups have a similar benefit, be it a government like North Korea, or a pseudo religion cult like Scientology. You can always fall back on "Unity".
It comes at a price though. The world is an indifferent place and its definitely more complex to navigate. But it is possible. Also think about this, if that tight knit group didn't shun you, would you miss anything about the "Religion"? no. They have put you in this position to have your friends and family or not.