They note that intuition is significantly impacted by culture, and that both culture and morality can be influenced by 'rational' argumentation.
I asked you to tell me who
"they" were. You didn't reply. Are you aware of any social scientist, other than Jon Haidt, who agrees with you that culture is an influence on moral choices?
Unfortunately, I can't debate Jon Haidt but
both of you are confusing effect for cause. Societies can be said to have their own cultures. We use the word
culture to represent the
prevailing beliefs and opinions of a particular society in a given era. Those beliefs and opinions are the product of human minds. Thus in Biblical times, slavery was condoned in most cultures of the world. So, if human minds caused the effects (opinions and beliefs) we describe as culture, how is it possible, as you claim, that cultures can change human minds?
Human minds are changed by more influential human minds. Thus, people whose consciences felt wrong about owning other people as property influenced other human minds to examine their conscience on the issue. Thus, over three centuries, the conscience-driven abolition of legal slavery moved from mind to mind across cultures.
They see it as a kind of dynamic system in which intuition plays a major role, but they don't support your blind faith in conscience alone.
There is no "they" supporting you. This is what you need to know:
Except for moral dilemmas, the final judgment in specific moral situations is made by an immediate, intuitive feeling.that emerges from the unconscious. If it doesn't FEEL wrong, the act is justified
Reason's function is to answer questions about the situation. Who did it? What exactly happened? Was there an innocent victim? Did the actor intend harm?
You claimed the 2 positions were 'opposite'. If you understood them properly, you'd know that this is a misrepresentation for the reasons I explained..
The two positions are dirt simple. The final judgments on moral situations are as Aquinas thought a) judgments of reason or b) the product of intuition.