This is what is so sad- people cannot take a joke these days. Sure, the actual literal comment is a bit overboard, but I highly doubt anyone in the UK these days doesn't know of Jeremy's style of humour. Of course he wouldn't want them actually shot. He writes this sort of humour every week to the entertainment of thousands, if not, millions of newspaper readers- But suddenly, when the unions realise they have a chance to keep the strikes going in the news, they simply use Jeremy as an excuse to throw the toys out even more.
But let's face it- the BBC will never chuck Jeremy, he's an absolute cash cow for the BBC, and is the face of one of the only programs that it churns out that is actually worthwhile.