Poland is a problem for the EU precisely because it will not leave

B REXIT, BEFORE it happened, was imagined in many forms. Hard, soft, Norwegian, Swiss or Turkish. Briefly, an Albanian option was discussed. Often it was just “clean”. A “clean Brexit” would free Britain from the EU’s single market, customs union and its courts, advocates said. Just as there are many ways of leaving the EU, there are many ways of remaining. There is the clean version, in which countries quietly accept the EU’s strictures. Then there is the messy version, where governments foul up the club. Think of it as “dirty remain”.