I think much of Custer's popularity, and unpopularity, rises and falls with the whims of the people who writes the stories, who in turn, at least in part, tell people what they want to hear. After his death he was considered a tragic hero on 2 counts, the ACW and LBH. That lasted quite a while. Gettysburg alone, if the cavalry battle had gone differently - if Custer was not there (even though he was acting under orders, who wasn't?), he still led from the front in the face of supoerior numbers, and stopped the Reb cavalery charge. Had they reached their target the battle, and war, would have been very different. In the PC era he is being sniped, perhaps rightfully so but, you men out there, had u ever been in love with a woman to where it ached? Him taking off to find his wife is certainly a violation, but I can see it after spending enough time on the Plains. We nit pick these historical figures to death when it suits us and others are given carte blanc.
I saw recent documentaries which claimed he was not all that wreckless, and that the indians were very well armed, having better repeating wepaons than much of the USC they were fighting, and that he was not initially going after woman and children, and that issue in complicated. There are so many versions of the battle of LBH. One soldier escaped, indian versions, forensic then and now. I dont know that we will ever be accurate or fair to Custer. It has been in vogue to denigate him. I am sure that will change AGAIN, with time.