The Red Devils' woes continued as they were beaten 3-1 at home by Brighton in the Premier League on Sunday (19.01.25) and the coach issued a damning verdict on his players as the club languishes in the bottom half of the table.
Amorim said: "In [the past] 10 games in Premier League, we won two. Imagine what this is for a fan of Manchester United. Imagine what this is for me.
"We are getting a new coach who is losing more than the last coach. I have full knowledge of that.
"We are the worst team maybe in the history of Manchester United. I know you [media] want headlines but I am saying that because we have to acknowledge that and to change that. Here you go: your headlines."
Amorim has collected 11 points in 11 league games since taking over as United boss in November and understands the pressure he is under to start delivering results.
The manager said: "I knew that it was going to be hard to put a completely new idea in the moment, but when you lose games and don't win three games in a row it becomes really hard.
"Everybody here is underperforming and we have to accept that. It is unacceptable to lose so many games. The opponents are better than us in many details.
"We cannot be consistent and I'm not helping my players in the moment. You have to acknowledge we are in a very difficult situation, with all the bad records, as losing games at home, losing games in the Premier League.
"I know we can succeed but I am not naive. We need to survive this moment. But I am not going to change, no matter what."