Re: the moral hand and veganism

my ethical system says that it is not permissible for chimpanzees to eat meat, because they can survive without meat.

So the next step is to enforce your values on chimps? Give them the gift of your morality? Maybe first send Torquemada to find out why they have evil intent so you can purge it better?

well, why should the chimp be allowed to enforce his values on others, on his victims, his prey? By killing a colobus monkey, a chimpanzee enforces his values in a very brutal, lethal way. Why should that be permissible? Why should the interests of the chimp count more than the interests of the monkey? When I protect the monkey by preventing that chimpanzee from hunting, I do not kill the chimp, so my enforcement is much less violent than what the chimp intended to do. What would you prefer: being enforced not to kill someone else, or being enforced to sacrifice yourself?

My first choice is to remove the enforcer and that is one of the very few circumstances in which killing can be justified sometimes.

but you evaded the question. You could not choose to remove the enforcer. In the case of the chimp, there is always enforcement: either the chimp enforces the monkey to sacrifice himself, or either I enforce the chimp to stop hunting the monkey. Removing the chimp means that the problem does not even pose itself. Removing me would not remove the enforcement of the monkey.