I am glad that you feel comfortable expressing your feelings instead of getting angry or running away from the situation. I can understand where you are coming from when you explain it all.
My abuser was sexist. It was a male, and he said and did many sexist things.. even my therapist said he is "misogynistic." I am not sure if it was his background, his culture, his up bringing. IDK. I know sexism hurts, and I know all sexist males are not rapists. But I don't think I am sexist as a result of what he did. I understand how sexism hurts people. I have experienced it myself a few times in life, and it made me feel so invalidated and misunderstood.
I think the people who are sexist are just really scared and have never been treated well by the opposite sex... but by the same coin, they may not be giving the opposite sex a fair chance to treat them well. It is a very difficult area of abuse, but I think we agree that it is a symptom of fear, mistrust, and PTSD. It's not a positive view to take into the world and it's preventing healing for them and others here.