I heard the same silly excuse for the simple change on the "er" to "a". But it's the same word. To try to reclaim a word like that isn't how it works. It sounds no better. And this is coming from someone forced to be considered about of that community who has this backwards thinking. I have glared down blacks who try to call me this and explained exactly why and the look of confusion is actually embarrassing at this point. It's the same look when I tell them that having their pants riding under their butts is a sign they want to be raped....