>poisoned the well of discourse Please find me a single topic which impacts more than a roomful of people where someone isn't engaging in this type of discours

>poisoned the well of discourse Please find me a single topic which impacts more than a roomful of people where someone isn't engaging in this type of discourse. This sounds like you justifying your former false beliefs (or at least lack of willingness to investigate alternative beliefs) by blaming it on other people who were also wrong.