[pessimizer]

> the only way out is deprogramming.

The non-propaganda word for this is "convincing."

[kibwen]

As the old saying goes: you cannot reason someone out of a position that they did not reason themselves into.

[giantrobot]

There's no convincing people that have left rationality behind. All of these types of conspiracy theory movements operate the same way. They pull people away from rationality and convince them that rational discourse are attacks against them.

It's little different than how cults operate. They go after marginalized (or convince people they have been marginalized) and prey on their insecurities and desire for belonging.