[_jal]

This is definitionally correct, but frequently far from reality.

Desperate people with no practical negotiating leverage may have the theoretical power of foot-voting, but it provides zero practical value.

Given that a lot of regions outside of urban areas are varying degrees of labor-monopsonies with a very few large employers, not having an official right to shoot your workers really doesn't make a massive difference in the amount of control they can exert.