I don't know why you'd want to discuss this issue at all when you know that the people who disagree with you happen to do so out of base motives. Incidentally,

I don't know why you'd want to discuss this issue at all when you know that the people who disagree with you happen to do so out of base motives. Incidentally, "every single one... save for one guy," might not be the best way to phrase it.