I need help finding sources that I have heard about in this sub reddit that pertained to certain therapists having biases against men. The reason being is my daughter is going to a therapist and during the interview with my mother volunteered some instances where ere she lost her cool and the therapist was understanding, and then my mother told me that during the same interview she told the therapist of times where I've gotten angry and it was frightening the frightening and the therapist immediately asked if the daughter could live with her instead of with me. My mother does not understand why I saw that as a red flag because I had heard of therapist being biased against men. Please help me find credible sources for articles showing this bias?

For those wondering why my mother was in the interview for therapy for my daughter it's because my mother helps me raise my daughter, as the mother is minimally in my daughter's life. I was one of the lucky ones that got custody of my daughter.