You are the one who cited the president as a moral authority, saying he called enhanced interrogation torture, and this somehow validates the claim that enhanced interrogation is torture and is immoral.
The president doesn't need to be a moral authority to define when torture according to US Code has taken place, that is what he did. I don't know where you're going with that straw man.
Just because something isn't regularly practiced , doesn't mean it isn't accepted by the community. The majority of the community support the idea of the right to self defense, but most individuals don't encounter a position where they have to defend themselves. It doesn't mean that self defense is recognized as moral and legitimate.
It is practiced often and is recognised as moral. Your straw men must be tired of being beaten so thoroughly.
The majority of Americans support waterboarding, and thus by your community norms standard, the practice is moral.
No, the majority of Americans are quite immoral as they support practises outside communtiy norms.
Those cases mean nothing without context. Can you cite a case where a US Court has banned the use of waterboarding for US Military or Intelligence Officials or prosecuted and convicted them?
The prosecutions of Japanese for waterboarding demonstrate the expression of American community norms.
When Obama said in such a contrived and fake manner that the, "We tortured some folks", he mentioned nothing about them violating US Code, and in fact the Obama Administration has made a point, to the contrary, that they won't prosecute the CIA or anyone in it who employed these tactics. He didn't make an objective legal statement. He just gave a moral opinion that isn't shared by the majority of people in the American community. His "moral point of view" if you want to call it that is outside the community norm. Those Japanese cases never said waterboarding across the board is illegal. I challenge you provide such language in the ruling of any of the cases of any of the japanese you cite.
Self defense, another example that destroys your "community norms" standard for morality as defined by the regular practice of the practice. Very few are ever the victim of a violent crime, much less do they engage in the act of self defense. There are 1.2 million instances approximately of assaults and murder in the United States in 2012. Lets assume that there are 1.2 million victims, and not there are repeat victims which is often the case. Even if we assume that each one of these victims engaged in an act self defense(which they didn't, but I will grant you to be generous), than persons who engage in an act of self defense are less than a percent.
FBI mdash Table 1
Thus your standard that self defense is moral based on the fact it is "regularly practiced" by the community, is bunk, since it is very rare.
However, I would argue self defense is moral, despite the fact is is not regularly practice by the community. Because the morality of an act isn't defined by the frequency by which it occurs in the community.
And this leads to a greater point. Morality by "community norms", whether it is defined by majority opinion, or legal code, court ruling, or whether it is invented in the contrived mind of a leftist like yourself, is subjective and can change, and often does. Thus it isn't a objective moral position, it is just a subjective preference. Morality is separate from the law, opinion, or personal practices.. They can intertwine, but they are wholly separate concepts. That is why morality is an objective concept.
There are much better arguments, particularly objective moral arguments against torture, one's I support, that you didn't employ and could have, because from your rigid secular left perspective, you can't effectively employ them.