alt Hacker NewsAs 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.
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!)