Marvin
Whether an individual deserves ridicule as a human being is a moral question. In contemporary society a person's behavior can be so contemptuous that most would think the individual deserving of ridicule. Regardless, an assertion that a particular conclusion is false because of the character of the person offering the conclusion is fallacious reasoning.
The issue is though that humans are very emotional creatures. As a result, to some, a person's character and their views are indistinguishable.