Because the pacified Irish border is an innocent bystander in the current clusterfuck, and it it is unconscionable that it should become roadkill in the UK's psychodrama.

The UK populace, and its political class, need to learn that decisions have consequences. That they might be unintended consequences doesn't get them off the hook. If they want to be able to strike new trade agreements -- a stupid idea, but that's their decision, it would seem - they need to do it in a manner that keeps the border open.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}