The thing is that he's now considered to be such a liability, and so useless, that once you've hit those depths (19 points behind in the latest polls) there's just no coming back from it. Its been a death spiral from day one!
He was on the north west news the other night, visiting a local council. The local labour bods tried to look enthusiastic, but the rictus smiles screamed "will you please **** off back to Islington before we all get contaminated by your awful 1970's lefty veneer". About as welcome as a fart in a space suit
Then local news guy interviews him. His first question... and I'm paraphrasing slightly, but... "you're a bit shit, aren't you really? Everyone thinks so. So when are you going to do the decent thing, and **** off?"
He then parroted off his usual "blah, blah, blah... elected by the membership... blah, blah, blah... mandated from the people....."
So its clear that no matter how bad it gets, he'll cling on like a particularly determined chug-nut
I'd imagine that this goes on in different parts of the country from time to time, but less and less, until even little local papers won't bother to cover his visits any more. Why would they? Its not like he's got anything to say. And unless he's visiting a 6th form common room, absolutely nobody is going to be glad to see him