Did Smart shove the fan? Did he shout at him or keep jawing at him? No, he did what (I assume) the NBA protocol is which is call security/officials to let them handle it and don’t further escalate the situation during the game.
I’m sure all NBA players hear plenty of pretty bad stuff game in and game out. But some comments are just “what the?” and I can see the potentially racial undertones to this. Would the fan have shouted this to Gordon Hayward? Idk. Maybe, maybe not. Would the fan have been booted if Westbrook or Lebron or Giannis complained? Idk. Maybe, maybe not. It definitely would’ve been a bigger story though