It is a little like arguments I have heard that black Americans who sound obviously black can't qualify for a job because they aren't articulate enough and it isn't racism. My response to that is "George W. Bush."
Maybe not hiring "inarticulate" blacks isn't racism. But why can an inarticulate white guy get a high ranking job if being articulate is so freaking critical?
There is always some excuse or justification for an overall pattern of behavior. Yet, the pattern persists and trying to point out the pattern gets dismissed for various reasons. It is a real life version of the trope Status Quo is God.