If the nominee were a man, they would have been referring to him as a janitor.
The references were not made because of her gender, but because of her lack of qualification in comparison to the other candidates.
I have no doubt (and I think it's terrible, personally). I'm just speculating as to what one might be referring to when they say sexism is a possibility. I haven't read everything; maybe there's something else.
I know who Coulter and Malkin want. I'm a little ashamed of both of them right now, to be honest. I don't mind people having opposition to this woman; I mind the rhetoric and some of the reasoning I've seen (specifically referring to the "elite" thing here).