This is often read as a critic against Stoa. It's not really true though (though you might find a quote of some stoic somewhere that does agree). The tricky thing here is deciding what you can change and what you cannot change. Or in which way you can change things and how attainable that is and how much effort you want to spend.
Many situations and problems are not clear cut and require some attention devoted to them. Sometimes levers to change something are available where you didn't expect them. And sometimes you think you can change something, but it turns out to not be true.
Stoicism is not about being passive, it is about being active. See what you would like to have changed, and in which way can you change things. And no, complaining endlessly, as is common in our society, does not bring much change ;) That is passive behaviour where you set out to be dependent on someone else bringing change.