Given the strong instinctual aversion to doing such things, anyone who is willing to do them probably has a brain malfunction. (Note that “believing they are ethical” is not the same as “willing to do them”.) Most people would consider an island whose inhabitants have brain malfunctions to be something to be stopped. And you can’t postulate a society of people who don’t have brain malfunctions and yet like to do such things unless they are not human.
Furthermore, most people asked such a thing will be unable to separate their instinctual reactions from ethical judgments. I suspect most people if told of an island where people eat shit, would be willing to make some non-zero expenditure to stop it. That doesn’t mean they’re basing their judgment on moral principles.
Given the strong instinctual aversion to doing such things, anyone who is willing to do them probably has a brain malfunction. (Note that “believing they are ethical” is not the same as “willing to do them”.) Most people would consider an island whose inhabitants have brain malfunctions to be something to be stopped. And you can’t postulate a society of people who don’t have brain malfunctions and yet like to do such things unless they are not human.
Furthermore, most people asked such a thing will be unable to separate their instinctual reactions from ethical judgments. I suspect most people if told of an island where people eat shit, would be willing to make some non-zero expenditure to stop it. That doesn’t mean they’re basing their judgment on moral principles.