Exactly the point
Those with very little experience and a lot of student debt have very little choice.
Those with little to no savings - and perhaps a dependent family have no choice at all.
Those two cover the vast majority of the workforce.
There's only two ways to solve this:
1) Legislation to ban these practices, with genuine enforcement.
2) A universal basic income, so everyone can tell a bad employer to get stuffed without losing their home or being unable to eat.
The third option of ignoring the problem because "I'm alright Jack" is unethical and very foolish - it only takes a few months to burn all your savings and be forced to take minimum wage indentured servitude to keep body and soul together, as a great many people have found over the last year or so.