Let's deconstruct shall we:
"Memphis arrived with an attitude that he had made it just by being here" - pretty obvious this one. Rocking up with his M7 branding and there are many quotes from players and coaches, but here's one from a genuinely great player in The Guardian - "When Depay was dropped from the first team at
Manchester United in 2015, Wayne Rooney suggested he should keep a low profile and not “come in with all your fancy stuff” for a reserve game. But Depay turned up in his Rolls-Royce, wearing a leather jacket and a cowboy hat. “I just thought: ‘What’s the point?’” reflected Rooney."
"then proceeded to put in some of the worst performances ever seen in our shirt" - 2 goals in 33 games, as a forward, yes that's pretty awful and i cant remember many players looking worse here.
"He then went to a far inferior league " - he went to Ligue 1, which has roughly half the UEFA coefficient score the PL has. 100.569 vs. 56.081.
"and used his performances there as some sort of justification that he is a great player after all" - another interview... "In March (2018), Depay was asked what he missed to become the best in the world. “Nothing in terms of quality,” he responded."
"That's why he's not liked." - maybe this is the bit you are referring to? I can only say why i don't like him, I couldn't say i speak for the millions of other fans who also think he's Nicklas Bendtner reborn.