Unions are competing both for contracts with employers, but also for employees among other unions. If Union A is demanding but gives good pay, Union B is more l

Unions are competing both for contracts with employers, but also for employees among other unions. If Union A is demanding but gives good pay, Union B is more laid back but has less reward, and Union C is both demanding and gives poor bay then it will fail as A or B grows. If there are no competing unions and you're in union C, then you've got no options but to quit or try and topple the union (impossible, effectively).