>mathematically and logically correct
There is nothing mathematical or logical about value judgements. Those are two fields that pride themselves in that. You are deciding that the opinion is idiotic because it's not your own opinion.
>If I hear additional information, I am happy to revise my opinion if necessary.
But for the time being you're willing to paint someone as an idiot without knowing why they've developed certain opinions. It's a classic case of the fundamental attribution error.