Rap mogul Russell Simmons has fired back at "do nothing negroes" who are refusing to let him move on from the mistake of sharing a parody sex tape video about African-American abolitionist Harriet Tubman on his YouTube.com page.

The Def Jam Recordings co-founder removed the clip, which featured an actress as Tubman having sex with her white 'master', hours after it debuted last month (Aug13), and apologised for putting it up on All Def Digital in the first place after realising it had offended many people who saw it, including members of Tubman's family.

Taking to his GlobalGrind.com blog, he wrote, "I'm a very liberal person with thick skin. My first impression of the Harriet Tubman piece was that it was about what one of actors said in the video, that 162 years later, there's still tremendous injustice. And with Harriet Tubman outwitting the slave master? I thought it was politically correct. Silly me.

"I can now understand why so many people are upset. I have taken down the video. Lastly, I would never condone violence against women in any form, and for all of those I offended, I am sincerely sorry."

But over a month later, he's still receiving hate mail about his error of judgment.

Appearing on America's The Arsenio Hall Show on Thursday (19Sep13), Simmons said, "I pulled it down and I didn't get any calls from any civil rights leaders or any people. They just said, 'We accept your apology,' because before they even knew about this, I had apologised.

"But a lot of these do-nothing negroes, they were very angry and kept talking, so it's been very tough for me... I wanna move past that."

Simmons reveals he's now hoping to make a movie about Harriett Tubman's life, adding, "(Actress) Viola Davis gave me this wonderful script."