1- No matter how incomplete our political system is today, does it satisfy (?) or repress its citizens?
2- The government repress/represses the people/peasants.
3- So, after practicing levitating her bed with the powers of her mind, she is ready to face anything or anyone who tries to repress her.
4- The UN banned him from repressing his people.
5- Turkish Kurds have been repressed for decades by the Ankara government.
Now, to answer your question, my friend, although repress can be used to substitute for suppress, I would go with suppress because it's more commonly used when describing what dictatorial governments do to their people.