I agree with Platini, AND I agree with Collina.
This is what Platini said;
'Manchester City and Italy striker Mario Balotelli threatened to walk off the pitch if he believed he was a victim.
But Platini said: "It's a yellow card. It's not a player - Mr Balotelli - who's in charge of refereeing."'
And this is what Collina said;
'Piara said: "[Euro 2012 Respect ambassador Pierluigi] Collina was clear that if a player did approach a referee and was looking for help, that the referee would then facilitate the player leaving the field of play.'
I would like the ref to take action first by threatening to abandon the game if racist chanting, monkey sounds or what have you didn't stop, but if he isn't, for some reason, and a player feels victimized - then I think he should alert the ref first and not just leave the field. Nothing wrong there IMO.