Andrew Jordan, president of the Socialist Labour party said Baroness Thatcher's legacy is the destructive impact her economic policies have had on the economy, particularly across the north of England.
He said the "semi-state" funeral she is going to receive is "disrespectful to many of the people across the different communities that suffered as a result of the Thatcherite policies."
The leader of the Socialist Labour party is Arthur Scargill.
The song from the Wizard of Oz has been climbing the download charts after a campaign on social media following Lady Thatcher's death
Margaret Thatcher's hardline approach probably intensified the Northern Irish troubles in the early 1980s but later helped to end them.
Margaret Thatcher was Prime Minister for 11 years, as decisive with her policies as she was divisive with her people.