ˈrāˌsizəm/

noun

prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one’s own race is superior.

“a program to combat racism”

synonyms: racial discrimination, racialism, racial prejudice, xenophobia, chauvinism, bigotry, casteism

“Aborigines are the main victims of racism in Australia”

the belief that all members of each race possess characteristics or abilities specific to that race, especially so as to distinguish it as inferior or superior to another race or races.
So clearly if you think I’m racist for not approving of black, ghetto rap culture then you must be making the broad, sweeping generalization that ALL black people participate in black, ghetto rap culture. Hum…let’s refer to that definition again, ” belief that all members of each race possess characteristics or abilities specific to that race.”
Ah yes, once again we find that the Left are the real racists. 
And for people who need this dumbed down a bit, I’ll present it in simpler terms 

This is bad.

This is good.