Source: the whole economy. If someone offers X, and you want Z, and you sign a contract for Y, they are giving you Y. Do you evet give Comcast an extra $50 for fun?
It's what the company supports, not what the union supports. And "performance based raises" are obviously not CoL raisesm
The fact that there is a minimum wage, and that efforts to increase it are met with resistance is proof that there are many jobs for which the minimum wage is also the maximum.