I think I understand your logic here. It does make some sense to use the harassment of a marginalized group as a sort of "tell" that this person is a jerk. I do worry though that it is a bit divisive. A lot of terms like "white male" and "feminist" are very loaded at this point and it feels to me like focusing on specific groups might be a distraction.
For example if I were to say that one of the most arrogant and aggressive people I've known was a self described feminist, it starts to distract from the fact the in reality this person is just a jerk and the feminist part really doesn't have anything to do with that. And any of the hateful gender specific things that person said to other people didn't really have to do with gender issues as much as this person was a total jerk to almost everyone around them.
For example if I were to say that one of the most arrogant and aggressive people I've known was a self described feminist, it starts to distract from the fact the in reality this person is just a jerk and the feminist part really doesn't have anything to do with that. And any of the hateful gender specific things that person said to other people didn't really have to do with gender issues as much as this person was a total jerk to almost everyone around them.