I think you should follow the citations behind that sentence. 2/3 are swift dismissals from outsiders - one from a dictionary and another from the UK parliament

I think you should follow the citations behind that sentence. 2/3 are swift dismissals from outsiders - one from a dictionary and another from the UK parliament (and this is especially vague). The latter is from a Roma advocacy group and it seems pretty emphatic: "Amongst most Romani communities this is an offensive racial slur. It derives from the word "Egyptian" due to the misconception that Roma arriving in Great Britain originated in Egypt."