I don't see how it is difficult for either of you to understand.
"I disagree with you politically because you are stupid and immoral."
This statement is indicating his political views are being formed based around me being stupid and immoral. Do you really think Steely has not yet formed political opinions prior to interacting with me? Do you think he would vote Libertarian in American if he did not find me stupid and immoral? Seems rather unlikely. Hell maybe the world does revolve around me and people base their opinions based on my views but that seems rather silly.