You're now criticising something more normal, his on field performances. That is not what you originally said, however, you described him as 'poison'.
I'm asking once more what he's done to warrant the level of criticism?
His attitude problems have been an issue since he was included on his first pre-season tour, going back, what, 3 years? So we're talking very early days. Bruno called him out on it in an interview, specifically his inability to make 2 team meetings on time and his general attitude. Ten Hag has questioned his attitude. Amorim has questioned his attitude and dropped him regarding poor attitude in training and towards teammates. If the captain and two managers have felt it necessary to do this so publicly to a young, talented player they've clearly got concerns and the penny isn't dropping with Garnacho. The very fact he chose to post what he did not long after the Europa League final showed his petulance and arrogance. He went to bat for himself. Dragging the club through more embarrassing headlines.
You've already mentioned some of his other indiscretions. His brother posts a lot more divisive content. I'm sorry, but how many other top clubs do we have, where player after player is calling out the management, leaking information to the press.and just general poor attitude and application.
The club has fallen so low that we've had several entitled players since SAF retired calling out the club, using dodgy agents to tout themselves to other clubs, using social media to disrespect management decisions, downing tools, constant leaking of information, poor attitude, punctuality etc etc. The list goes on and on. It just keeps chipping away and creating more negative headlines.
You see, if you let they likes of Garnacho, Pogba, Sancho, Rashford, Depay, Di Maria etc continuously put themselves before the club, you create an entitled atmosphere. It creates disharmony and resentment within squads. It's no difference to any workplace. Bad eggs will ultimately poison a workplace.
You can try and push the narrative that me and the fanbase has " got it in for him" all you want, but his actions are selfish, petulant and consistent. His attitude on the post season tour summed him up. There's absolutely loads of video footage of him showing very little attempt to interact with fans and clearly displaying a surly attitude. Giving a fan the finger( as Amad did of course), pushing reporters/fans? He's walked past fans outside Old Trafford for months, kids waiting for hours to meet their hero, he can't even be bothered to look in their direction. He's thoroughly dislikeable.
He's talented, but whilst his ego and bad attitude have developed, his football talent hasn't. He's trouble and I'd rather cash in and let some other poor sucker be responsible for him and his irritating brother. Just hope for his sake he doesn't end up with Conte at Napoli. He won't last 5 minutes.
A genuine question, do you also think Jadon Sancho has been unfairly targeted/ scapegoated by our incredibly loyal and long suffering fanbase? Because their actions have been very similar.