He's so painfully unimaginative. So this is all part of his shtick, the shit clothes, the rubbish hair, the PG Wodehouse absolute bollocks way he speaks...been doing it for decades.
But it failed in the end, Alexander. It wasn't funny in the first place, and now you've been an awful PM, you can't just reheat the leftovers. Because of the power vacuum and dearth of talent in that awful party of his, he actually would have a chance of a comeback if he gets away with a few things he's being investigated for (always possible). Just show some contrition, change up the act, at least pay lip service to having learned some lessons and come across as a halfway serious person. We all know he craves the prestige of a position of power and all the perks that come with it, if not the responsibility of actually doing the job.
But no. Dress and act like a cunt. Well guess what, if you do that then you're never coming back.