GeD said:
Of course. But some do not want to obey the "authority" of the collective norm.
Thus, the "deviants" will be punished - not because the collective norm is metaphysically "true" - but because the collective norm has more power than those "deviants" that oppose them.
I'm not at all sure what you mean by 'metaphysically true'; could you explain, please?
Deviants are not necessarily punished. In fact, many forms of deviance are tolerated and accepted by, and eventually incorporated into the mainstream. We didn't execute punk-rockers for having green hair and safety pins through their noses, after all.
However, you're right about the power of the majority. Isn't all morality (where morality polarises 'good' and 'bad') determined by majority consensus? Could there be any other kind? Even rational anarchy presupposes a collective agreement about rationalism. In fact, it is possible to make a very good case for all of physical reality as we know it being the result of a consensus of opinion.
I think you may have misunderstood what I mean by authority; I'm not talking about jack-booted troopers enforcing comformity and punishing deviants. I'm only referring to the legitimacy of the concept of 'right' agreed upon by members of a group. If nine out of ten people in a club agree on a particular mode of behaviour, that becomes the norm for the group, even if one out of ten dissents. The dissension or deviance of the one does not diminish the legitimacy of the norm. That is not to say that the one must necessarily be wrong, just because they are different.
A moral assertion however, does allow for the statement that the deviant is 'wrong'. Morals are like 'norms-plus', in that they are required or strongly preferred norms. They are usually the product of group consensus, to the extent that they tend to be rejected or changed when sufficient members of a group reject them: that's why women now have the vote, and overt segregation is a thing of the past in the USA. There is nothing inherently sinister about the consensual, collective nature of morals, or the concept of deviance from a collective norm. It is because more people agree than disagree, that murder and rape are considered 'bad' and subject to harsh punishments. This is a collective norm which has become 'required' to the point where deviance is punishable, and rightly so.