What factors beyond fear can be causal factors of disgust?
I think disgust is a topic that cannot be talked about without evoking the feeling of disgust in almost all concerned. Therefore, every opportunity to talk about this topic should be fully explored. Let me try to extend the discussion beyond mere politics of disgust.
I am of the opinion that disgust is the seed of biases. If I am vegetarian, a non-vegetarian evokes disgust in me and that limits my interactions with her. One of the biases against Caucasians is that they do not wash after they poop. This was true for 15th century Red Indians and Latinos and is true for some Indians today. They (mainly Americans) are barbarians in the eyes of Japanese and Chinese because their outlook and manners are considered `aggressive', or that they do not show `proper respect' for the authority.
It important to discuss these biases because it is these biases that stand in the way of us becoming a real global community.
One of the factors that contribute to this seed of biases is fear. In other words, fear is a certain important part of DNA of the feeling of disgust. Scientists tell us that our fear of poison is the factor that we have such strong physical reactions to vile smells and tastes. If eating is life supporting, then vomiting is anti-life. And we know that when we even hear the word vomit, our body reactions to that stimulus is measurable.
Thus, it is possible to hypothesize about our embedded biases, the biases that hinder our closer mingling and cooperation, something that has not only gradually happened across history, but also has produced richer outcomes for the mankind.
My question is: Besides fear, what possible other factors could form part of DNA of disgust?