On Friday night, the insurgent but still undeclared French presidential candidate Eric Zemmour was to address 600 of his supporters, the merely curious, and the media, in a ‘rendezvous’ at the Royal Institution in Mayfair. No prizes for guessing that the RI, a quintessential institution of the enlightenment prizing reason and inquiry above all, has now terminated the booking after performing ‘due diligence’ and discovering that the rightist Zemmour is not their sort.