the inclusion of those terms would not be out of place.
But what would including them actually do? The TOS forbids porn as well. The debate about recognizing porn has raged on and off for decades, and it all depends on whether or not those who would eliminate it are able to accurately judge the emotional responses of others to certain images.
Yes, we know what what the words misogyny and sexism mean. Do we know it when we see it? If we want to recognize misogyny in the speech of others, we have to evaluate their intent. If we decide someone is using misogynistic language, we are evaluating how they feel about women. We are telling other people how they feel. Sometimes their feelings are easy to discern, other times it is not. And on an anonymous internet message board when two hundred words is a Russian novel, fine emotional distinctions are especially problematic.
The only way you can really understand someone is to actually interact with them. Creating increasingly specific restrictions on what may or may not be said is merely outsourcing the evaluative process to others. That's not fighting for yourself, it's demanding others winnow down who you interact with to avoid differences of opinion. Remember, the more you allow others to define the feelings of others for you, the more you allow them to define your own feelings.