In the case of Theresa May's plans for Brexit, perhaps you're overthinking it. I don't think it's part of a plan to take the UK to the brink and then roll back to a more sensible plan. Instead I think she has dogmatically fixed on a course of action and is determined to pursue it come hell or high water.
Maybe, but Theresa May campaigned for Bremain. What made her switch to such a self-destructive dogma? If she is indeed focused on a diamond-hard Brexit for whatever reason, she either changed opinion entirely, or lied about her personal convictions during the campaign for political points.
I find the second variant to be more likely. If it is correct she is at least capable of lying about what she wants in order to get it.
In short, it could be she has no sensible plan and is just following a dogma, but I find it unlikely.
I suspect (but have no evidence to support my suspicions) that Whitehall mandarins were working on all kinds of scenarios before and after the Brexit vote which likely involved different combinations of being in and out of various institutions (EEA, Council of Europe and so forth). Only one of these scenarios has become government policy (Hard Brexit) and maybe they couldn't construct a "winning" version of that scenario.
Then again it could just be that May, Fox, Davis and Johnson have thrown all the carefully laid plans in the bin and replaced them with the letter to Santa
The question then becomes why did the government chose that option and not some other option? If there were winning - or at least less bad - scenarios that would enable the government to at least mitigate the damage, it would be much more sensible to follow one of those. All forms of Brexit are bad, and they picked the worst one. Why?
There are two reasons I can think of:
1. This option makes it more likely they will dominate the elections for years to come or
2. The option was chosen in order to sabotage Brexit from the inside. They calculated Labour would oppose their destructive approach and a rebellion from a few Tory MPs would make the A50 bill impossible to pass. The plan backfired, because Labour imposed the three-lined whip to pass the amendment.
What do you think? Was there a third option that I'm missing?
McHrozni