Let's just remember that May's withdrawal agreement had support from the EU too, and it tanked in Westminster. That Tusk gave it lukewarm support is hardly a guarantee that Jezzer will be the saviour of Brexit, much less an indication that he'd do any better job of it than May herself. And just for clarification, I think the EU are sick of us, but there are no shortage of proposals that 'they' would find workable. It's the British parliament that are the sticking point, and as we've seen with his attempts to rally the opposition ranks, let alone pull in moderate Tories, Corbyn is catnip to a great many parliamentarians, so you'll have to forgive me if I find the idea of him rounding up enough people to pass any Brexit deal extremely remote.