Let's say it was worded instead: "... these are some reasons that he was wrong, and his style of argumentation leads me to feel actual antipathy toward him."

Maybe it is because "vile" doesn't sound like a very extreme word to me—almost like Daffy Duck saying "despicable". I suppose I would have had the same reaction, if instead bluecalm had denigrated him with a word that sounds more serious to me like "worthless".