He's never going to be treated fairly here, there's people who try to call him unprofessional or a cancer when he's universally loved and respected by every coach and teammates he's encountered (outside maybe of Mourinho, and I think Mourinho is far more to blame and has a history of this as opposed to Pogba).
He's absolutely been bullied, and his character has been assassinated many times in the process. The problem when you state those obvious things is that people think it means you're saying he's been perfect on the field when that's not the case. He's had poor games as well, he's not been able to break out of the team's inconsistency, which ultimately has made him inconsistent as well. However, that doesn't excuse or allow going beyond the performances on the field and start attacking his character. The fact that he's black, foreign, and rich definitely has something to do with it as well.
When he's fit to play and posting on social media, people get on him. He's been hurt and not been posting much, people are getting on him for not supporting the club. He changes hairstyles, there's deriding comments and calls of unprofessionalism or diva-like attitude where you will never find a coach or teammate that can accuse him of that. Some of the hypocrisy from the old United players that have been pointed out in this thread would be farcical if they weren't so pathetic and out of touch with reality. These "experts" are crying out for the team to improve and yet are doing everything they can to drive its best talent out of the team for years now, before he even wanted out. If you think other players aren't looking at how Pogba is being treated when they're weighing their options for their next career move, you're crazy. This will have an impact far beyond just Pogba and will affect future transfer dealings, without a doubt.
I have said it and will keep saying it, Pogba is a consummate professional, a good person/teammate, and he deserves much better. I don't think he'll find that at Real Madrid necessarily, I would like to see him back at Juventus despite the racism issues that Italy is plagued with (though not solely). In the end, all I can say is shame on those pundits, some of the posters here, and those who keep feeding this narrative of an unprofessional, locker room cancer.
In the end, Pogba is a world champion, successful both financially and achievements on the field, and I hope he finds a place where he can be happy and treated fairly. It clearly isn't at Manchester United or in England. I commend OGS for how he's defended him, but it's a losing battle against this sort of media, pundits, and fans.
do I really need to spell this out? Guys been injured for months.