I don't remotely hold it against you, for what it's worth. It was an honest error. Alienation (both from being too online and other factors) along with frustration at the genuinely reactionary elements in American popular sentiment can easily overwhelm a person and lead to false generalizations, and I've done just the same thing myself in the past and still sometimes need to keep myself from doing it again. The main difference between your response and mine is that I'm not sure that I have the courage to directly present an autopsy in response to criticism like you did.

There's no use in moralizing over past mistakes, whether they are your own or others, what matters is doing our best to make sure something we have identified as a mistake is not repeated. Reactionaries usually (not always, but usually) need to astroturf the popularity of their policies, so we must do what we can to expose the illusion of their "popularity" in those cases.