How do you convince someone they are brainwashed when they don't think so? You don't because the very notion of the idea implies that you are doing to them exactly what happened to them to be brain washed in the first place. Let them figure it out on their own. Present your evidence and leave the rest to them.
Is it even worth trying? Yes.
What is the best way to counter program brainwashing when getting out of a program? Time, time, and more time.
What worked for you? Soju and some good friends who listened more than talked.
What didn't work? Jim Beam and my own stubborn belief I could conquer the Kool Aid alone. In the end it really did take my friends helping me to get as far as I have.
Do you consider your mind free of program ideology and self doubt? 1 day in 7 on a good week.