gosub
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May probably doesn't feel she has the political latitude to go for anything that allows the headline 'free movement' to be kept -and EFTA allows that, even if it does so with caveats.
Mays bind is that she's faced with a parliament thats all over the place on Brexit, and an electorate that apparently takes a pretty firm view - if she had a parliament that would back her overwhelmingly she'd almost certainly go for some form of 'soft' exit with EFTA and she'd feel that she could face down the electorate, but without that support and knowing that Parliament would take the opportunity to cut her off at the knees if it saw the political opportunity, she has no real option other than to wave the big electorate stick at parliament in order to rod Brexit through.
which rather ignores the electoral reality of what would happen to Mays party at the 2020 GE if she's not left the EU. what might have been better ways to manage the Brexit process are now completely irrelevent, what all that matters is two absolutes - firstly that the two year limit for negotiations is pretty much unbreakable, and secondly that any government going to the polls in the 2020GE that has not left the EU and the free movement principle is going to be utterly destroyed.
i think she'll go for a hard exit, get the election over with and then start the clear up - i'm afraid that the tea leaves do not suggest a mutually constructive approach, but a bitter, nasty break-up with lots of animosity. in that case, it would probably be better to get the divorce over with and then talk about the future when the shouting is over.
I got a different set of tea leaves, but they won't settle til after Supreme court verdict (and preferably the Copeland by-election (but they a now talking about putting that off til May 4th (ffs)))