As a worker, you can exercise your voice... by getting another job. That is your vote.
The power of your vote is proportional to the value you bring.
A while back I threatened to quit because I had a team dynamic that was untenable. I made a management change mandatory.
I got a new boss. The old boss was later terminated.
No, this is called exit and it assume that monetary reasons are the only important thing in an economy. That is false, workers should be allowed to exercise their voice about bad management and change bad management. If you want to leave that is fine but thinking that every worker wants the same thing as you is extremely foolish.
Congrats as a single individual doing something, LMK when it amounts to real material change like obtaining a pension, or securing more PTO, or getting better health insurance.
You can also exercise your voice by... talking. That might mean trying to convince leadership, it might mean trying to coordinate a bunch of people who agree with you but don't want to act on their own, or, who knows, it might mean something else. But there are quite a lot of things you can do that are short of threatening to quit or simply leaving.
(And sometimes just leaving really is the best step!)