Cardi B Apologizes for Coretta Scott King Role in 'Housewives' of Civil Rights Movement

1:33 PM PT -- Martin Luther King III, Dr. King's eldest son, tells us he's upset about the timing of the skit's release -- on the "I Have a Dream" anniversary -- and because it distracts from several more important issues. He also says Cardi missed the mark on his mother.

11:08 AM PT -- It seems Cardi B was quick on the uptake, because Bernice King just tweeted that Cardi B has already reached out to her.

9:30 AM PT -- Dr. Bernice King -- the youngest child of Martin Luther King Jr. and Coretta Scott King -- has responded to Cardi's portrayal of her mother, calling it "repulsive" and "false" ... and very, very badly timed. Tuesday is the 55th anniversary of MLK's March on Washington where he delivered his famous "I Have a Dream" speech.

Bernice says Cardi is using a platform that her parents made possible in an atrocious way. She wants to talk to Cardi face-to-face.

Cardi B playing Coretta Scott King will be the most unforgettable and hilarious thing you see today -- it will also be the most inappropriate. Guaranteed.

Cardi stepped into the role of Martin Luther King Jr.'s late wife for a skit called "Real Housewives of the Civil Rights Movement." Yes, she went there ... spilling tea with Rosa Parks and the wives of Malcolm X and Jesse Jackson. There's also a jaw-dropping "Iggy Azalea" sighting.

You gotta watch, but fair warning ... there are multiple references to MLK's infamous infidelities, and even the trip to Memphis, where he was assassinated.

The sketch is part of "Wild 'N Out" star Rip Michaels' new show, "Off the Rip." As we told you, it also features Cardi delivering "Ho Etiquette" jokes that some call racist.

Look, it ain't gonna win an NAACP Image Award, but where else ya gonna see Cardi/Coretta drop the line ... "All these hussies wanna sleep with my huuusband!"?