Not sure about Raptors fans nowadays, before Vince Carter retired, he mentioned wanting to retire as a Raptor or hope they'd retire his jersey. I remember at that time seeing a decent amount of Raptors fans not fucking with those ideas, so you know how much disdain they held even after many years. Spurs fans still constantly boo Kawhi extra hard to the point Pop did what he did last week. We had OKC fans hating KD, but it seem like the hate had slowly died down these past few years? Cavalier fans forgave Lebron after he returned and won one for them. These are the most obvious ones that came to mind.
Answers not limited to NBA players. Feel free to share if there are players of other sports that for whatever reason, had fans turn their backs on them.
I don't think he's popular or good enough to garner much hate tbh.