Unlike the lesser creatures, it's not possible to oppress a man. A man is unstoppable in whatever he chooses.
The other creatures who complain, really aren't opressed either. It is they themselves who oppress themselves, by first believing they're oppressed, either as an original thought, or being taught it by their families or rabbi's, reverends, preachers, etc.
Those who are deceived into believing they're oppressed, are easily deceived by the devil in other ways. For some, it is their very nature, to be deceived.