“From all indicators…” What indicators are you talking about regarding your view of the direction of the field of psychology? Where is your data? If you’ve already figured out what is correct or incorrect regarding the cause of individual ills, why do you need to go study that topic?
Most of the Ph.D. academics in psychology who I know use research methods to investigate these questions and do not assume all personal ills are caused by “oppressors”. Mental illnesses obviously have some genetic and environmental causes. The psychologists who are in the field providing evidence-based treatment also do not give clients the impression that they are “powerless to change their situation”. Quite the contrary. I’m not sure where you are getting your information about modern psychology but I don’t understand your conclusions.