If the people arguing that morality is just preference answer: “Do what you prefer”, my next question is “What should I prefer?”
In order to accomplish what?
Should you prefer chocolate ice cream or vanilla? As far as ice cream flavors go, “What should I prefer” seems meaningless...unless you are looking for an answer like, “It’s better to cultivate a preference for vanilla because it is slightly healthier” (you will thereby achieve better health than if you let yourself keep on preferring chocolate).
This gets into the time structure of experience. In other words, I would be interpreting your, “What should I prefer?” as, “What things should I learn to like (in order to get more enjoyment out of life)?” To bring it to a more traditionally moral issue, “Should I learn to like a vegetarian diet (in order to feel less guilt about killing animals)?”
Is that more or less the kind of question you want to answer?
In order to accomplish what?
Should you prefer chocolate ice cream or vanilla? As far as ice cream flavors go, “What should I prefer” seems meaningless...unless you are looking for an answer like, “It’s better to cultivate a preference for vanilla because it is slightly healthier” (you will thereby achieve better health than if you let yourself keep on preferring chocolate).
This gets into the time structure of experience. In other words, I would be interpreting your, “What should I prefer?” as, “What things should I learn to like (in order to get more enjoyment out of life)?” To bring it to a more traditionally moral issue, “Should I learn to like a vegetarian diet (in order to feel less guilt about killing animals)?”
Is that more or less the kind of question you want to answer?