DON'T withdraw them!  This is without a doubt the dumbest thing I have seen anywhere in Wikipedia, and that's saying a lot!  Just because one lunatic prints these ridiculous claims in a book, and one rabid wikipedian repeatedly reinforces them on the internet, doesn't make them legitimate, or worthy of comment in the article.  The fact that anyone could even perceive racial stereotypes in this silly, silly film reveals the viewer's own racial bias (and this holds even if you claim to belong to the 'group being lampooned').  You can claim that small green rubber toys with inhuman features represent an attack on black people if you want, just because they wear sunglasses and breakdance, but in order to do this you'd have to believe that no one else wears sunglasses or breakdances.  What is is that makes a viewer so hypersensitive as to apprehend racial bias where clearly none exists?  In any case, until there's more evidence to substantiate this ridiculous claim, there's no argument for making the reference in the article.