know they could replace anyone with unpaid interns if needed because well that’s the state of desperation already. Is this true, given how low unemployment is?

know they could replace anyone with unpaid interns if needed because well that’s the state of desperation already. Is this true, given how low unemployment is? (With respect to Google engineers being in a different situation from supermarket workers, teachers, uber drivers, etc.) I would think workers have more power now than ever in recent memory given low unemployment and the current administration's aversion to immigration. Where are these replacement workers coming from? I disagree that unpaid interns is tenable solution.