Yes, well opinions also anticipate observations. But in a sense by talking about “observable consequences” your taking advantage of the fact that the meta-theory of science is currently much more developed then the meta-theory of ethics.
But some preferences can be moral, just as some opinions can be true. There is no automatic entailment from “it is a preference” to “it has nothing to do with ethics”.
Preferences also do that.
Yes, well opinions also anticipate observations. But in a sense by talking about “observable consequences” your taking advantage of the fact that the meta-theory of science is currently much more developed then the meta-theory of ethics.
But some preferences can be moral, just as some opinions can be true. There is no automatic entailment from “it is a preference” to “it has nothing to do with ethics”.