Of course, this is such an exaggeration. There are scholars who research how far psychotherapy as such in its history, methods, data, facts, evaluation patterns etc. is oriented towards a norm of the "bourgeois white man" and how the urgently needed deconstruction can succeed.
This critical process has many parallels to feminist issues and is still ongoing. Studies on stereotype threat e.g. and the effects of discrimination have been conducted and many gaps and unanswered questions have become apparent.
What is most important to me is, how I can support you to better understand the connection between societal power systems and biographical factors and to you can walk your own path. In my experience, the problems of people who live here in Germany as first generation migrants and those of the following generations differ greatly in content.
Which role "trauma" as a concept plays a crucial role in critical therapy is an open question. I am not certified as a trauma therapist, but I have studied the topic very intensively and consider myself trauma-informed.
In my experience, there are different kinds of racism, which might be accelerated with other lines of difference (class, family, religion, gender, sexuality...) - and the more complex your situation gets, the more important it is to focus on the essential: your healing and thereby change the system as a whole - or to simply enjoy your own life more lightheartedly.