Emotional Reactions to Moral Arguments

I think that emotional reactions by themselves don't, can't justifiably be used to rebut logical arguments. So for example, someone might have a visceral reaction against the idea that eating a dead body is perfectly morally acceptable because it doesn't harm anyone. But there are evolutionary reasons why we have a revulsion at the idea ofeating a dead body. And so I think once you go through that process of recognizing your ethical, emotional objection, you can recognize that those don't actually pose a challenge to the logic of the utilitarian argument.