Earlier quoted context omitted.
Unions don't always indicate there is a problem in need of solving. It's just a group of employees agreeing to bargain collectively with their employer, which helps balance out the negotiation power between employees and the employer and creates a stable, well-defined employment relationship.
I struggle to imagine a scenario where employees would unionize despite already feeling like they are treated fairly. The union/employer relationship is inherently hostile. The whole idea is that unionized employees can threaten production/profits as negotiation leverage. Choosing that path means the employees have already given up on cooperation based on goodwill. It must take a very sour relationship to reach that…
Maybe neither side is planning on doing anything hostile, and they are all happy to have things clearly defined.