I think research shows that there is reluctance by the dominant group to change its ways and that they merely morph or change their language to appear more reasonable and humane to make complaints become less vocal. I think it also shows that there is resistance in some groups, depending on their class status, to accept certain changes in society around race and gender. There is still resistance to change due to fragility and that is not something that is easily dealt with unless the individual chooses to face himself/herself in the mirror.
I would expect some problems from those who lack a sense of cultural humility because they have been trained in cultural responsiveness or competency and from those who are members of the dominant racial group. Those who are not receptive to history as told from the other side may resist hearing and/or accepting history as told from the oppressed groups narrative.