Wrong. People have NO obligation to support unions or their members. If they can't provide goods and services competitively, then they should be gone. If union jobs disappear, then they aren't competitive and shouldn't be subsidized by any of us.
I didn't say union anywhere in my post.
So, what is the function of a citizen? Not citizen of the world as the "free traders" like to think of themselves, but a citizen of a sovereign nation. What is their function? What is their duty?