I don't necessarily disagree with this, yeah, if he did all the exact same things but for Duke, there's a good chance I would hate him. My point is, it would have required an entirely different offensive philosophy from K for him to have had the exact same career there and I don't believe Hansbrough would have put up nearly the same numbers there that he did here. Josh McRoberts was the #2 recruit the same class as Hansbrough, he averaged 10.8 PPG for his two year career at Duke. Hansbrough's worst scoring year at UNC was 5 PPG higher than McRoberts' best year. Brian Zoubek was top 25 the class after, career average of 4 PPG and 4.5 RPG. K would not have made Hansbrough the focus. So would I have hated a guy who would have been the 3rd or 4th best player on his team due to how K runs his offense as much as I hate the usual suspects on the most hated Duke list? No. I would have hated him at the time and forgot about it until years later when someone goes "hey, remember this guy?" and I say "Oh yeah, totally forgot about him, but I hated that dude."
The same is true for Redick at UNC. He wouldn't have had the success. The fewest 3's he attempted in a year was 238, with two seasons having at least 300 attempted. There have only been 3 times since Roy has been here a player shot 230 3's in a season, Marcus Paige in 2015 and Justin and Berry in 2017. None of them reached 300 attempts. His fewest 3's made in a season was 95, 3 times going over 100. Justin in 2017 was the only time a Tar Heel has hit 95+ in a season. So Redick's numbers would have dropped significantly in Chapel Hill because Roy wouldn't want someone shooting that many 3's, especially right when he got there.
Again, success is the main reason for hatred. If Tyler Hansbrough averaged Isaiah Hicks career numbers, there would be no real hatred once he left. If Redick averaged Quinn Cook numbers, no one would remember him. I don't think either player would have had the career they did had they switched shades of blue, so I don't think you can say "they would be as hated/loved as the other," in large part because they both would have been bad fits in the opposite offense. The whole thing is a pointless exercise, both played where they went, had the careers they had, and that's it. We love the ones we love and hate the ones we hate.