Unions are a mechanism for power, and anywhere there's power there will be those who would abuse it. But, without unions the employer has a near-monopoly on th

Unions are a mechanism for power, and anywhere there's power there will be those who would abuse it. But, without unions the employer has a near-monopoly on the power in the relationship. I think it's generally an improvement to have two sources of power competing with each other - even if both are imperfect - instead of one source of power that's unilateral and unchecked.