I'm not saying that there are no uncontroversial moral issues. I'm saying that even moral positions that are wrong usually have something that tells in favour of them. This contrasts with the situation in science where outdated scientific theories (such as Aristotelian physics) no longer has any evidence that tells in its favour (that can't be explained away).

I'm not saying that it is impossible to find moral questions that are one-sided. What I am saying is that this is an uncommon pattern, and that this contrasts with the situation in science. My hypothesis is that the cause of this difference is that in science the evidence have a "common cause"-structure - they are all caused by the fact which they indicate - whereas in morality we have not - moral facts do not cause their evidence, or the arguments for them. This in turn indicates that there is no independent moral reality.