"Is necrophilia morally wrong? That's a social taboo right. I would see it as being morally wrong. I also think desecrating a human body by eating it is morally wrong. That's someone else's body dead or alive. I do agree that it is a taboo which is created by society, but morals are not set in stone they are different from person to person, morals can be set by individuals
The term “morality” can be used either
descriptively to refer to a code of conduct put forward by a society or,
some other group, such as a religion, or
accepted by an individual for her own behavior or
normatively to refer to a code of conduct that, given specified conditions, would be put forward by all rational persons.
So yes I as an individual would have a set of morals that would not allow me to eat human flesh, UNLESS it is for my own survival. You are right by saying that I was wrong with the morality I should have thought it through more. I guess what I'm trying to say is that as an individual my morals would not allow me to do such things unless I had to survive and the person was already dead. Is killing morally wrong? Animals kill each other? Why then is it morally wrong to kill someone? I'm sure cavemen murdered all the time and knew that what they did gave them a great felling of power but they also probably knew deep down inside that what they did made them feel bad, brought out the dark side. I'm talking about murder and not self defense. Why do you think it is morally OK to eat human flesh?"
Is necrophilia morally wrong? No, not necessarily, necessarily being the key word. One can imagine, if allowed, necrophiliacs grouping together to allow their bodies to be used after their own passing. In such a case, what would be the problem?
As for the body belonging to someone dead or alive, let's examine this - it's crucial to the subject. Alive, obviously, the body is that of the person. But what about after the person passes? How can anything be said to be owned by a person who is no longer alive - the owner no longer exists. Ownership requires an owner.
You make a fine point in saying that cannibalism (could be anything, really, necrophilia, wearing tennis shoes, you name it) is against the morals you hold personally, thus it is morally wrong. That's all well and fine, but if you are speaking of your personal code of morality that code must either: 1) remain your own or 2) be open to rational criticism. Under the first possibility, you might say that you view X is morally wrong so you avoid X. If you were to say that X is morally wrong and others should think so as well, then you have to accept the second option, rational criticism of your moral code.
As for your point about killing, this is an interesting topic, and one heavily debated, especially in modern philosophy. Generally, the killing of humans is said to be wrong because we view each other as having equal rights (rather, that we should have equal rights), thus murder is necessarily morally wrong as to murder would be to destroy the rights of another. Animals on the other hand lack the capacity to reason, and, even if they can reason to a slight degree (as some animals seem capable of doing) animals do not see each other as having equal rights, thus animals are morally inferior creatures. Basically - morality, in this frame of thought, is a purely human concern. Some claim that animals have rights, which I disagree with.
Why do I think it is morally acceptable to eat flesh? Well... I do not see cannibalism as being necessarily (again, necessarily being key) wrong, though, I have little doubt that the vast majority of cases of cannibalism occurred under conditions I would call morally wrong.
"So are we just going to ignore the heatlth reasons?"
The significance of eating human flesh on our health seems morally irrelevant to me. If you think otherwise, I'd like to know why.