"Racism is rooted in the belief that one group of people is superior to another, based on appearance or presumed ancestry. The racialized group then experiences discrimination—being treated as inferior or undeserving. People who are racist will display their racism through discriminatory actions that can be blatant or subtle."

I prefer the above definition of racism. I wish it was the one commonly used. I find that any remark that includes any reference to the race of a person gets labeled as racist.