‘Identity politics’ claims, on the face of it, that everyone has the right to identify as anything they want, and we all have to accept that. Sounds great, doesn’t it? Brilliant. So egalitarian. And yes, if I decide that I ‘identify’ as a Prosthetic Vogon leading a constructor fleet across the galaxy which intends to obliterate the Earth to make way for an interstellar superhighway, or that I am Superman, Napoleon or for that matter Jesus Christ, then it matters little; I’m just barking mad and decent people will humour me until I become so delusional that I need to be locked up for my own safety. I would be, in common-sense terms, a harmless lunatic.