The trolls don't care who they joke about, Arsenal won today, and the whole City lost, not just Haaland. If it weren’t for the cowardly referee, City would have played 1.5 halves in the minority after Kovacic was sent off and the score would have been more indecent. Haaland has not performed well in big games so far, but I think this does not matter much because on average he performs at a top level.
If Kovacic was sent off with his reckless tackle on Arsenal Captain Odegaard and that of Declan Rice, Arsenal should have benefited from the game by gaining control and having power to break the walls and defense of Manchester City.
The official didn't take a look at it, and not did the VAR intervene.
Failing to score for the last three games is disturbing, though this is the Premier League. He is a top talent, I felt like playing Haaland alongside Julian Alvarez would free him up. But not completely, not without Kevin De Bruyne.
Arsenal won, therefore there will not be such a big scandal as after the Tottenham - Liverpool game, although in my opinion such a mistake has a greater impact on the outcome of the game than a counted or disallowed goal. Football has long since reached a level where a numerical majority means a lot (not like in hockey, but almost).
As for Holland, it makes sense to bet that he will score 2+ goals in the next game. For him it always happens at this pace - either nothing, or a hat trick.
The trolls just want to make something look funny so that their page or channel or whatever they have gets views. It is hard to do when you are the one playing on the pitch. And if the team loses, Haaland is obviously not the only one to blame. He has been performing well. Even though it is not something very special I still think he is performing well. And he should not be the only one responsible for losing at all. I would actually argue about what the other players were doing. A player can actually have one match in which he does not play well. That does not mean he is a bad player and that also doesn't mean he is the only one responsible for the loss.