Is it wrong to complain when you’re treated unfairly, or stay quiet?

I asked because somebody posted on another question of mine that they felt like people should just be quiet when they are treated unfairly and should not complain. What do you think?

It's okay to complain when you are treated unfairly because that's the only way you can create change.
Even if you're being treated unfairly, you should just shut up and be satisfied with what you have.
Select gender and age to cast your vote:
Is it wrong to complain when you’re treated unfairly, or stay quiet?
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