When you use a knife to cut bread, you have the foundation to go and slaughter people. It's literally the same principle of action. It doesn't imply you'll do it.

Similarly, being able to do moral value comparisons doesn't imply you'll find human lives inferior.

Really? So when looking at the trolley problem, it's irrelevant to you if on the side track is a slug rather than a person?

You can kill the slug and still feel bad that a living organism was destroyed.