Hi,
I have been through this too (the trauma, that is). I've always blamed myself too much to get angry. But I think what you are feeling is natural, and that even though some of those things may seem to be (to others) an "over-reaction" it isn't about all the little things, but about what happened to you. And, it's true, women are objectified often in our society, and expected to be a certain way, even if a lot of it is unconscious, and based on the framework the media has created. I think that is also a justifiable reason to be angry. But if it is affecting your life, and your relationship, it's just my opinion, but I think that is a more personal anger about what was done to you. And also maybe an empathy, as I get quite upset if I feel, say, a women is being blamed for an assault or something that relates to my own issues, because I relate. So it becomes personal, even when it's not "about me". If that makes sense.
I think if your therapist cannot understand your anger, you probably need a new therapist. Just my opinion again, but I don't see how you can heal if the person who is helping you cannot even validate or comprehend how you feel, or why. And I think you have a very good reason to be very angry. And sometimes... Not always... But I know I have discovered this with a certain trauma myself recently... It turns out that there are emotions under the anger. It sounds to me like you are getting triggered (the nudity in movies etc.) and in general, anger is considered a "secondary emotion", which means there is usually a primary emotion, such as hurt or fear, that a person experiences, or as a way of protecting the self from danger (or perceived danger). It doesn't just come out of the blue, and for no reason. So that is either there, or you've passed through the original primary emotions and processed those already.
You will be able to process this as well, and after you have done that, it will not rule your life this way any more. You may get triggers, but it won't be all-encompassing, or on a daily basis.