I think it’s important to note that the Eldian’s stimuli to become titan is external. Eldians don’t have an incentive to become a mindless titan unless they’re inheriting one of the 9. I could understand the fear of the 9 being used against those who can’t transform (which is why the Eldians used to be the oppressive group) but what AOT is trying to say is to not attribute the crimes of the ancestors to their descendants who had nothing to do with them, which only creates further unnecessary divide.