It’s a favorite ploy of libertarians, and it annoys the living daylights out of me. Have the guts to argue with reason instead of hand waving, like you have the rigorous high ground because you can define your concepts, while those bed-wetting liberals just deal in fuzzy concepts like social justice.
Yeah, I thought so.
Now define “utility.”
Yeah, I thought so, too.
If you can’t live in a world where meanings are contested and pluralistic, I suggest a desert island.