Sotto voce

Did Jeremy Corbyn mutter "stupid woman" at the Prime Minister?  Certainly looked like it, and lip readers seem to be pretty unanimous that he did.  But supposing he did - so what?  Might have been unparliamentary, but was it sexist, as some have insisted.  My understanding is that it would only be sexist if he said it because she was a woman - in other words, it was aimed at her as a woman, and I think it was pretty obviously aimed at her as a member of the government and "one of them on the other side of the House", and the fact that she was a woman didn't come into it.  So, not guilty, I think.