Let's
be careful. We have to make a distinction between two different sets
of questions:
- Questions about the origins and causes of people's moral views.
- Questions about the correctness binding nature of
different moral views.
You may be right that people have different experiences that lead
them to accept different moral principles and make different moral
judgments. But how does that bear on questions about correctness or
whether a principle is binding?
For example: Hitler probably had experiences that led him to hold
certain moral principles; but it doesn't follow that his principles
are as correct or as binding as, say, Ghandi's.