This makes sense. The president is supposed to be held to a higher standard, on a level of Overton Window reasoning, which is what this demographic mostly operates on, this means that the president is viewed to be objectively at that level by default, regardless of who they are and what they do, the position/system wouldn’t allow otherwise, this allows subjective justification of anything above that line as not only acceptable but superior morality. “If the president can rape kids then I can use the n-word!” Levels of thinking. Him setting the bar at the floor allows some people to think that their bar is really high. Him being the president, with no other factors involved, enables a false sense of morality in a certain demographic of people. He validates them as honorable, and they take that personally.