I understand the context of Racism:

Racism is: Discriminating between ethnicities (black and white or as in the case of Doha, not allowing single Asians into malls during certain times but allowing western nationalities in)

Racism in NOT: Disagreeing over who drives better than someone else, or not wanting to live with anyone other than your own nationality.

These are more generisations and cultural issues than racism.

I could put dozens of other examples here, but these are the jist of it...

Anyone care to add?