I don't know about the final pill.
I know the dam is the Holocaust. Once a person cannot deny the deniers, the dam is close to breaking. A little self-study and the confidence to apply simple logic to a situation which they had never questioned, and it's sayonara.
What did it for me was Holocaust revisionists -- men who question the official Holocaust narrative -- being stalked, harassed, assaulted, and threatened with murder by gangs of Jew fascists. More than one has been beaten almost to death. The injustice of this really pissed me off, and made me investigate the entire Holocaust question.
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