Wait, Gasol is racist as because of one gesture? Seriously? Unless you've heard he is a card carrying member of the Nazi Low-Riders or good friends with the Grand Wizard. How can you make a huge assumption on someone you personally don't know.
Seriously, how can you hate a fan of a sports team? Unless they blatantly did harm to your family or someone close to you, it seems kind've juvenilish to harbor such resentment. Hate (and here's the cliche) is a very powerful word. I just don't see how there is enough time in the world to say, "hey, him he's a Lakers' fan...so let me hate them."
Let's play the game, though.
Anyhow, I dislike a lot of Laker fans because of their idiotic behavior (see: the ones who fought with the Celtic fan in '08 and those who decide it is a fine form of celebration to burn and deface property) and the ones who come out of the woodworks to pledge their allegiance to the team.
But, overall I have had nothing but good experiences whenever I come across the sparse Dallas fans in SoCal, so I would say I have question with more of my favorite team fans than I do anyone else's.
Though the one time I almost got into a fight after losing the '08 finals made me dislike the Celtics fans because, well, throwing a bottle at my friends and I is pathetic to say the least.
Now, I don't hate ALL Boston Celtics fans because of that one incident, but I don't care for the guy who decided it was worth it to celebrate a championship by putting one's health/well-being at risk simply because sports team he supported just won a championship.