You are framing the argument disingenuously. This isn't a simple formula where union = better. There are reasons why people don't think a union is in their self interest. Contrary to whatever you're parroting, there are actually people who have good reasons why they don't want a union--including things they have actually experienced. The fact that you can't possibly see the other side of it and can't even fathom an argument against it just shows how biased you are. The fact that you don't even think other people can make their own rational choice shows how condescending you are.