Can't understand why people are so upset.
Is it because zwarte piet is black. When he would be white it's not a problem.
So black people can not play him anymore. Ow sorry my friend you can't play with us, your to black. Who's the real racist behind this?

Or is it because he was a moor?? So people can not impersonate each other.
Again, I don't know off anyone who's oppose to this cultural tradition instead of some so called world improvers that can only complain about little things and never even attended a sinterklaas feast.
We respect zwarte piet! Not laugh at him!
edit: Why is it any different from a Muslim woman who refuses to take off here veil. It's just a stupid sharp. If you take it your way then it might be an insult for all the woman who fought hard to get woman rights in the world.
But then again, I don't see it this way and I have respect for their ways and their believes!
Perhaps I would be more open minded when we change little things about him. Take away his earrings, change it into something else, maybe make his lips less red or something like that and I would agree. But the black is camouflage so our children wouldn't recognize it's actually us.
edit2: Are you really suggesting teaching children what a racist is???