They formed a Members-only union which can exist absent a majority of employees joining. The terminology is confusing since all unions are member-only. These m

They formed a Members-only union which can exist absent a majority of employees joining. The terminology is confusing since all unions are member-only. These minority unions do not have collective bargaining rights unless the employer agrees. https://en.wikipedia.org/wiki/Members-only_unionism https://en.wikipedia.org/wiki/Members-only_unionism