First lady Michelle Obama speaks during the first day of the Democratic National Convention in Philadelphia. (J. Scott Applewhite/Associated Press)

This isn’t a hard call to make at all.

No need to offer a catalogue of outrageous racial nonsense spewed down through the years by Fox News host Bill O’Reilly.

His response to first lady Michelle Obama’s convention speech in which she said “I wake up every morning in a house that was built by slaves” seals the case against him. In an effort to set her straight, O’Reilly informed his Fox News audience that “slaves that worked there were well fed and had decent lodgings provided by the government, which stopped hiring slave labor in 1802.”

Only one unshakeable conclusion is left: No one with respect for the dignity of any person and the value of human life should appear as a guest on O’Reilly’s show. Full stop.

It is further inconceivable that any self-respecting African American, regardless of rank or station, would ever set foot on his set.

O’Reilly’s musings are so beyond the bounds of morality that to be on his show is to grace uncivilized thinking.

Let O’Reilly exchange views with himself, with his followers looking on. All sides will end up the poorer. But the rest of us don’t have to join in or watch it.