in some situations you don't have a choice
in wisconsin if you were a state employee you were forced to pay dues whether you were a member or not.
Yes, that is why most of the south enacted right-to-work laws. I always paid dues in a union shop although it was not a requirement. I simply never cared for the extremely poor services and extreme politics for which I paid. If the unions policed themselves and supported non-communist politics I would be more favorable towards unions.