That idiot was told in no uncertain terms what lay ahead of him that fateful morning of The Big Horn Battle but he plowed ahead anyway and his entire command was wiped out. He also managed that day to get not only himself and his men killed, but his brother, his brother-in-law and his nephew. Major Reno Benteen, who narrowly escaped with his life that day said of Custer “I’m only to proud to say I despised him’’.
If I remember correctly, Custer had one of the highest, if not THE HIGHEST, death rates of American soldiers under his command during the Civil War - he did not care how many of his own men died during battle!!
The only reason that there were not MORE American Soldiers killed at Little Big Horn, since Custer split his command into three groups in an effort to attack from three different directions, was because (at least I believe) the two other sub-commanders so despised Custer that they failed to press the attack or come to his defense once Custer was surrounded.
I’m not sure that they “wanted” him killed, but I will bet that they were not “upset” that he was killed!!