I fell off the escalator trying to follow your logic. Try this, how long would an insurance company stay in business if they had to (by law) provide coverage for participants without charging those participants premiums?
When participants have the right to say Ef this and drop out, not very long.
When they don't, more or less indefinitely.
In first scenario, policyholder can seek coverage through shopping around, then only subject to policies or limitations of the policy selected. Usually the way private insurance works like car insurance.
In latter scenario, the insurance provider stays around indefinitely. Though only non-beneficiaries are usually expected to pay. This is called the government system. This ensures the lower few percentiles get free ride through life while the remaining population pays. Ask how children of illegals have full benefits. How criminals that crash into a wall in a police chase can afford life flight and a hospital stay.
Someone else(tax payers, health care providers and ultimately their customers who gets passed on higher cost) gets screwed to pick up after these people. That's how.
Or how about not paying taxes if the party in power isn't your choice?
I don't have to pay anything to any political party. Decisions made by those in power can affect how the tax is collected and how that is used/abused, but I don't have to pay for political expense. I can however, choose to, at my own will donate for any political cause I see fit.
The fact is clear...if you benefit from a collective bargaining agreement (and everyone union or non-union benefits from the existence of unions) you should have the decency to understand your obligation to participate by being a member.
Don't assume union is nothing but good. They do good but they do evil as well. Just like laws. Laws that provide more assistance to families with 5 or more kids and low income benefits them. It harms those who have 2 kids and belong in the upper middle class. If I become poor and have 3 more kids, I can benefit, but right now I don't therefore I am not benefiting from a such law. The only argument in favor is "once you have more kids and poor, you will benefit, therefor you benefit". Those who fit in the beneficiary category will fight tooth and nail, just as current union beneficiaries do.
It is a cause of stagnation and hindrance to advancement and opportunity. Seniority system means it disproportionately benefits lifers more while those who have no plan on staying a long time are oppressed.
College students who don't mind being helpers every school break are oppressed for example.
Existing higher seniority employees who will be used at higher expense will benefit. Union erected a wall that bars the company from soliciting for willing low-wage employees. Low wage employees are not only losing the ability to get jobs, but higher wages for high seniority drivers mean less money available to zero seniority people.