[lenticular]

>You are contradicting yourself. If a union could be a good or a bad thing, then one cannot use the argument that we do things for the greater good without presupposing that a union is a good thing. You are indeed assuming your own premise as true, which is indeed a logical fallacy.

No I'm not. In these comments I am arguing against the premise that a closed shop union is automatically invalid because the coercion would be wrong. The advantages that a union can have is not subjective under pretty much any reasonable ethical framework. If your ethical system can not produce judgments about public policy based on evidence, then it is useless.

Subjectivity is a different thing from uncertainty. The goal of ethical systems is to provide a way to make ethical decisions based on evidence. If we can agree on some ethical concepts, then objective decisions can be made given those concepts. The selection of an ethical system is subjective, but it's pretty obvious that it must allow for coercion.