The problem is it's not just 'form a union'. In most cases unionizing means joining a much larger union that covers many hundreds of companies. And it will mean that all questions of compensation or discipline then have to go through a union contract. It means more paperwork and less flexibility.

If there is trust between workers and management, then workers often don't see much benefit to going through all this. And that's why the guy said every shop that went Union deserved it, because those shots all tried to save money by screwing their employees and so the employees fought back and unionized which ended up costing the company more than if they had just paid the workers correctly in the first place.