Exterminating six million people because they are of a particular ethnicity in your worldview can be both good and bad right and wrong.
No my world view is that it is wrong. I accept the fact that there exist people with diametrically opposed world views.
When we appeal to each others sense of morality, or impress upon another a "moral obligation" we must to appeal to shared values and experiences, and reason with one another to convince one another, or, if we have irreconcilably opposed values we have to come into conflict.
I'm simply not under the impression that the moral obligations I might wish people to accept are universal, objective, or sustained by an invisible person.
Morality is an idea, a human invention, It will only ever be as good as we are.
The condemnation of the Natzi's is greatly widespread today because people took it upon themselves to make it that way.
Morality is enforced BY US.
This is the reductio ad absurdum of your view.
It isn't my view at all.
Thinking morality is a human idea doesn't mean I think all things are permissible or correct, that is simply your straw-man argument.
In your worldview, saying rape is wrong is like saying chocolate is nasty.
Tell me, why think that moral statements are no different than statements of person-relative taste?
Because peoples "tastes" are trivial and harmless differences between people where as people who rape people seriously harm them.
We think rape is wrong because we empathize with how it feels to be raped, we can reason out how terrible it is to do something like that to peope, and we don't like the perceived consequences of living in a society where it was acceptable.
The moral obligation that I would feel to stop a rape because I think it is wrong is no less real than one ordained by some invisible being, I simply think it's source is the humans who came up with the concept of rape, who thought about it, who taught me, my own empathy in the situation, and my own judgment.
From the Internet Encyclopedia of Philosophy:
Relativism Implies that Obvious Moral Wrongs are Acceptable
The most serious objection to moral relativism is that relativism implies that obvious moral wrongs are acceptable. The objection is that if we say beliefs and actions are right or wrong only relative to a specific moral standpoint, it then becomes possible to justify almost anything. We are forced to abandon the idea that some actions are just plain wrong. Nor can we justify the idea that some forms of life are obviously and uncontroversially better than others, even though almost everyone believes this. According to the relativists, say the critics, the beliefs of slave-owners and Nazis should be deemed true and their practices right relative to their conceptual-moral frameworks; and it is not possible for anyone to prove that their views are false or morally misguided, or that there are better points of view. To many, this is a reductio ad absurdum of moral relativism.
I'm not a relativist, I simply believe morality is a subjective idea, that it originates within humanity itself.
I would have no problem beating you to death with my bare hands if you tried to exterminate millions of people, thus the objection that I find obvious moral wrongs 'acceptable' is a bit odd.
I don't find obvious moral wrongs acceptable at all, nor do I accept what I see to be obviously wrong.
I am not forced in any way shape or form to accept the legitimacy of every subjects morality simply because I think morality is subjective, that is just silly.
The view that morality is a human idea does not in any way shape or form imply that all human ideas are equal.