I think the most egregious statements he has made are regarding PTSD. He has said these veterans are weak, they weren't tough enough. For that alone, calling him Sgt Bonespurs is being kind.
Trump actually said, "“When people come back from war and combat and they see maybe what the people in this room have seen many times over, and you’re strong and you can handle it, but a lot of people can’t handle it,"
Some people are emotionally stronger than others, OM.