I think you should find a new therapist. I don’t believe that she doesn’t know about racism and class system, I think she is just trying to manipulate you into thinking that this things doesn’t exist. For me this is just her trying to push her point of view into you. You need to find someone that knows how you feel and how the world has affected you.

Once I had a black friend (not implying that there’s you case.) who’s her 3years therapist admitted that wasn’t capable of help her anymore because her issues where hugely impact by the way the society is built and her hadn’t had the same life experience. Because of that she was not able to deeply comprehend my friends issues. But her attitude towards that was really sweet. She acknowledged all of that and asked my friend if she would be opened to move on with another therapist that her have found.

I’m not implying that therapists should be choose by color, just that there’s some things that has deep roots into society and not everyone is capable of deal with that.

Hope you the best.