Original definition: "belief in the superiority of a particular race"
This is bad. It was pretty much nonexistant in the past few years. PoC liberals and their white allies then keep redefining racism:
First it's: 'prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one's own race is superior.'
And then it's "Racial prejudice + institutionalized power" So people of color are deliberately absolved from racism. Even when LaShawn Marten screams "I hate white people" and beats Jeffrey Babbitt to death, that's not considered racism.
And now it's "Institutionalized racial privilege + institutionalized power". They don't count affirmative action as 'privilege' but they count band aids having a color similar to white skin 'white privilege'.
Some have even went farther to say that any anti-white comments are justified (i.e. far from racist) and that historical oppression makes anti black comments infinitely worse.