I didnt want to get involved in this but here goes and don't bite my head off but....
I have to say I don't really agree with what you two are putting forward here, in fact I actively disagree. This isn't me saying there's no United fans out there who may criticise Pogba more so because he's black, there probably are but I don't believe it is significant enough above other reasons he gets criticism. I actually think it's kind of incorrect too. I actually think some of the certain aspects of Paul Pogba that you mention actually make him more likeable to a lot of United fans and that is why factually speaking he is one of our most popular players. Look at his instagram following for instance.
Now correct me if i'm well off the mark here but I bolded the comments you made above because I don't really like what they imply. You both seem to be linking him dancing, getting haircuts and spending money with his race/culture. As if it's a 'black' thing to do those things. You're then suggesting people are linking these things to his race and thus the criticisms he receives because of it are due to him being black. First of all, these aren't black things, they're just things. There are hundreds of non black players who dance, get haircuts and do extravagant things.
Paul Pogba is massively popular BECAUSE of these things, he's given a lot of leeway BECAUSE of these things. A lot of people enjoy his extravagant ways (me included) . The Pogba family dancing at a wedding is one of my favourite things. Paul Pogbas whacky hair gives me the occasional laugh but to me these things have feck all to do with his race.
And as someone who has criticised Pogba a lot I can tell you the above stuff is completely irrelevant in isolation as to why he rubs me the wrong way on the occasions I criticise him. Paul Pogba is the most talented player at the club, he's our most expensive ever signing, he graduated from our academy.
Expectation and a desire to see him do well therefore are escalated and are probably higher than for any other player, even Rashford. This will automatically mean more scrutiny and attention. Now Paul Pogba has tried to leave United about five times in his career. He has an agent who repeatedly comes out slagging off the club, and on none of these occasions has Paul Pogba spoken out against it. Paul Pogba has spent almost five years here and has failed to deliver the expected consistent performances. There is literally no other United player in our history who you can say these things about.
Now as a United supporter, this irritates me and if we've lost a game and I'm on instagram and I see Paul Pogba dabbing in his swimming pool, I'm going to be a little bit extra annoyed. My guess is this is how the majority of United fans occasionally feel about Pogba and then they come on here and vent. However, if he does it after a victory, I'm lapping it up as are others. It will for the overwhelming majority of time have nothing to do with his race and not be seen as a negative. I mean who the feck didn't enjoy Lingard moonwalking at the Emirates?
What should be mentioned again, is that there's also a lot (especially younger fans) who actually look at Pogba's continuous positivity and his flashy ways, in spite of the on field disappointments and look up to him.
Like I initially said, I don't doubt there's a few racists out there ready to stick the knife in on him but if you come on a United forum and put that kind of comment out in a thread, people aren't going to take too kindly to it, regardless of you saying things like "its not everyone", "I dont mean the Cafe". It shouldn't need to be mentioned at all because it isn't significant enough to be and it doesn't explain the extra criticism he gets when you weight everything up.
In relation to your Rooney comment that I bolded too, remember than Rooney received death threats when he was linked with city, remember that people turned up outside his house 'wanting to talk'. Also remember that Wayne Rooney went on to become our greatest ever scorer and basically sacrificed personal glory for the team on a regular basis during his time here. Expecting him to receive more criticism than Pogba is truly baffling.
And as
@Fridge chutney states, the flack Harry Maguire receives on here and other media platforms it above that of Pogba. Maybe you just don't see it...