The most famous forms of Holocaust denial and revisionism tend to focus on Jews, casting doubt, for example, on how many were exterminated in the camps. But denying the impact the Nazis had on the other groups they targeted, including queer and trans people, disabled people and Romani people, is still Holocaust denial. Maybe someone should tell J.K. Rowling.
Adults with empathy do their best to make the world better for the people around them instead of just telling everyone to deal with it.
Children do what others tell them to even if they disagree with it.