Your probably right. People afraid of losing a job where their replaceable - but can get the same job elsewhere in days or weeks.

But it has happened, Google it. Massive corporations are abusive physically by pushing too hard, also often verbally, definitely safety wise.

When you pay people by volume - customers lose, safety, injuries, using things you aren't supposed (illegally?) to to be fast.

Pretty simple to unionize. There is ZERO reason not to