Amorim should have understood where he was going, Manchester United was in a bad state even before he was appointed head coach, and after that he sold several more attacking players and what did he expect, that just because he became a coach, the team should win, no, that's not how it works. Apparently, Amorim is not as good a coach as expected, and most likely they will give him more time, Manchester United management has such an approach, they gave time to every coach they had, but as history has shown, it did not help any of them.
I think Amorim deserves more time and it's too early to judge because Erik Ten Hag really destroyed Manchester United.
Unfortunately the trophies he won made people ignore the fact that he is not a hood coach, check I European and Epl stat, they are poor. The quality of players he got and the kind of impact he had on them, Christiano Ronaldo was right about the team mentality thanks to him. He was mod and didn't want to become better rather just settled for less.
Amorim got a huge job and I know he would have expected the task to be tough but not this tough which is the issue, let's see if he can turn things around with time.