I keep asking you, PGR, what do YOU define as “a reasonable Brexit”?
You mean that the UK leaves members of the EU? Then that’s what is happening on January 31.
Boris already declared Brexit January 31 and he’s made the best withdrawal deal
NO, that's NOT what is happening. Boris had his chance and schedule for Brexit, according to the UK Referendum, on October 31. It was Johnson who requested an extension from the EU to January 31, to hold his election. The EU granted it. As far as the EU is concerned, the UK is still a full member of the EU with all rights and obligations. The EU and the UK reached a provisional agreement in March 2018. It includes a transition period until 31 December 2020 in which ALL EU rules continue to apply. It also covers the border between Ireland and Northern Ireland.