The whole point of having the "racism" label, is to be able to use it as a justification for ostracizing people from "polite society". Over-use the term, and it loses its power. Worse, using the term labels the person uttering it as a Leftist loonie.
This has me thinking about the old party game, Limbo, (which may reveal my age) where people in a line try to pass under a bar while bending over backwards. The bar is set high at first, and most people can go under it, but as it is lowered, more and more people cannot manage it, because most people can’t bend over backwards and still maintain footing and forward motion.
I think this would make a great graphic - call it the Politically Correct Limbo - each downward movement of the bar would have a label - with the highest bar slot having a label like the true definition of racism. Then the lower the bar goes, the more ridiculous the requirement, with the last one being “excuses all negative behavior because offender is a different race, gender, nationality, religion, etc.”