The concept is at least intriguing:
Point is, of course, it’s neither the UK nor France but England and Anjou:
Have you been to that region? It’s nice and they clearly like us. The motivation comes from Macron’s granny and behind it is stymying Brexit, therefore it must be declined on those grounds.
On the other hand, there’s something definitely romantic and even politically expedient for our islands in forging some sort of alliance – it’s a lever of sorts. I for one, as a Francophile and adoring French regional cuisine, feel that something at least should be signed, if only to get the cuisine of that region available to us and then whatever they feel they need.
Hell, why not a treaty of protection, not unlike with the Falklands? This could be a good table turning on Macron and his EU, it would be a grand place to go for a short break, with direct flights from London or Manchester.