It is worth noting that we (UK) are beyond the final final final deadline for sorting out things with the EU, and into an extension of the final final final talks[1]. I see our side's potential acceptance of this like a man adrift at sea in a lifebelt choosing to turn to the guy in the liferaft with a hook-for-a-hand (who has a nasty look in his eye, also apparently unbothered by the slow leak he already caused for himself), just because they don't like the boat behind them that they jumped from in a drunken rage and refuses to climb back into on 'principle'.
Best case scenario is the UK is just using this offer to persuade the EU that it 'has other offers', like the husband who moved out of his house and started living in his company car, but that's a desperate ploy that is never going to be taken seriously. And I wouldn't trust this government to understand this. We have Jacob Rees-Mogg today saying that Unicef's wish to make donations to children in England who are clearly living under hardship (and likely were even before Covid) isn't needed and 'is political'. This from the arch-politico, in some ways a Mitch McConnell of Westminster, who was born with a whole silver service in his mouth, has never known poverty as a child or otherwise, and had a nanny when he was young whom he still comfortay employs as an adult to look after his own numerous[2] children.
I dismiss it, though. It's just a distraction. From things on both sides of the Pond.
In AmeriPol terms, as this isn't a Brexit thread, it's Trump trying to add to his 'successes', like brokering peace between countries not even actively at war (plus using that excuse to try to sell more weapons to them(!)), or even on the same continent... The poo-flinging monkey is also throwing bananas (hopefully with its other hand) hoping that some of them land somewhere it can claim to be useful. Perhaps some of the poo and some of the bananas land close to each other (Western Sahara), and he's just as fine with that.
[1] Apparently because of the singular vanity-project of ensuring there's not some sort of hot Cod War in our waters, which would actually involve the final vestiges of a once-great industry that vastly declined for plenty of reasons that did not include Europe.
[2] And at least partially numerated in your actual Latin...