The problem as you correctly put is that people worry, but that does not lead to a solution. There is really no point in worrying - if you cannot change something, why worry about it? If you can change it, why worry? You might have to think deeply about how to change it and act on it, but just worrying is like praying - it gives an semblance of action without actually doing anything.
The hamster, the wheel and the cage are illusions. We choose certain things as more important to us than others. You can always quit and walk out, but a lot of times we prioritize our comfort, an (illusory) stable earnings etc. over freedom.