Their fertile imagination? I'm surprised how little comment about CPTPP the government have actually made.Begging to join the CPTPP. Where does this come from?
Scratch below the surface of most uber remainers and you discover that what it is really about is handing over power to the enlightened and progressive EU to permanently keep out the Tories (and by extension English "old" establishment) by other means, because they can't persuade the electorate to stop voting them into power, because the electorate, especially in England are too stupid to see the light and believe everything that the Mail, Sun, Express and Telegraph print, without question, which of course is all pro tory propaganda.
Unfortunately trying to sell the EU as enlightened and progressive isn't very easy when it turns out that those most influential in it behave like anti vaccer nutjobs.