Have you considered that Mainstream movies - which are watched around the world - have a big impact on people who don't read or think much, or don't have a good education, or have been indoctrinated into holding socially destructive views? I have an education that steered me away from engaging in racism, intolerance, prejudice and so forth from a very young age. But there still is a shitload of racism, intolerance, prejudice, sexism and other nastiness in the world. Hundreds of thousands of people in different countries and communities around the world encounter it every day. THAT is what the "social justice" message in movies is all about. You are showing people who actively engage in injustice loud and clear that injustice isn't something good or tolerable. And you are sending a message to victims of injustice that they are not alone, that injustice can be fought if you stand up to it and fight it. I see nothing wrong with such a message. What I DO see as wrong is arguing that these themes should be removed from the movies - that the problems addressed will simply "fade away by themselves" if nobody talks about them or makes films about them. Problems don't "go away" if you stop talking about them or pretend they don't exist. In fact, injustice would quickly become "normalized" if you didn't address it in films, on television, in books and journalism. Anybody could do whatever they want to another person, and nobody would make films or TV programs about it, or report on it anymore. That isn't the kind of world I want to live in.