In terms of negativity, my observation is that their poorer performances overshadow their good ones the most. There is always a lingering distrust towards them, and the shortest string.
Mainly though, the criticism is often personal. The recurring theme of attitude and commitment always comes up with them, which is quietened with some good performances, but reoccurs if it doesn’t go well. Fred was lambasted for getting married in the summer, but there seems so little will to defend him, understand him - there was a unanimous throwing away of the player, the person etc. With Martial, it’s similar, injuries are questioned with raised eyebrows, a few bad games and half the forum have ‘had enough’ and he should leave the next summer. A week after the winner in the derby he was back to being the enemy again.
With Pogba, there isn’t even much to be said there. He was announced injured and a thread was created suggesting it was made up and he’d agreed a move to Real in January ffs. Any bad performance lingers and lingers, and there has been a sentiment of distrust since before the deal for his return was even done.
I don’t see the general ‘one of us’ treatment of them the way I see some other players. They are often spoken about as if they are here under duress, poor performances are because they care less about the club than other players, and will be good riddance when gone. Of course, when they produce their genius, we love them again for 5 minutes, but generally, I don’t get the impression that they are seen as ‘family’. More to be tolerated on the condition they are brilliant weekly, and as soon as they are not, it’s like a latent vitriol comes straight back to the surface. On the basis that I can guarantee that Pogba, Martial and Fred will continue to have some dodgy performances, I don’t see this changing much. Some people may say it’s the money they cost. Perhaps. I think Paul Pogba at least, due to the fact he’s an FA Youth Cup winner here and has spent most of his adult life in Manchester as a red would by now be taken in as ‘one of ours’, but he’s seemingly always one bad performance away from excommunication.