My ex was insulted that I could ever think he could be brainwashed. He came out of the Landmark carnival ride glassy eyed and vomiting up jargon, telling me everyone should take the Forum, everyone should have this experience, that he now saw the "possibility" for living a full, courageous and free life.
it is tricky... actually when you come out of the first course, the forum, this experience is real for the individual,
For you it is real - you have constructed a mindgame for yourself that is real. Then when somebody has doubts about this new reality you have to defend it or die mentally.
Landmark are very good at implementing this mindgame. All the leaders are running this mindgame on themselves. But to succeed with it you have to give the control of your mind up.
It is "interesting" that people willingly go into the trap without doing research first. But it is essential for landmark to keep bad publicity at bay. In some countries they have lost and left.
Too accept that you have been brainwashed is not easy. It's like you would be told that a table is not a table, a glass is not a glass. For most people (sane ones) that what be a bit harsh. But in a way a table is not a table unless we people agree on it. This agreement about what is real is a big thing in the advanced course. Everything is supposed to exist only in language - as an agreement between people. Which I guess is correct. The problem is when you start to think that experiences are not real. Then you can lapse into psychosis if you are unlucky.
I know firsthand - I was heavily involved with landmark for 4 years. They stole my mind for a while but I got it back.
The way to do that is to leave landmark - telling them that you CHOOSE to leave. Just say NO. Then probably you should seek some kind of counsel. Wellspring in the US are good. They can give you ideas. I spent 2 weeks there. They know all about these LGATs and other manipulative groups.