A linguistics and education professor from Michigan State University claims that telling somebody that you can’t understand him is an example of “linguistic racism.”
More specifically, it’s “racist” to ask a person to repeat what he said because you “don’t understand [his] thick accent.”
Another example is someone “openly say[ing] only English is to be spoken in the workplace” despite the presence of multilingual employees.
This is one time where I wish I was still back in college, and specifically, at Michigan State in this little turd’s class.
Because from then on, I would only speak to him in Afrikaans, and submit all my papers in Afrikaans. Then, if he attempted to change or penalize that, I would label him a linguistic racist and file disciplinary charges against him, using his own precept as the basis.