And how was the Belfast Agreement forgotten ? Indeed the latest unilateral action is to support it in the face of EU and Remoaner attempts to harm it by allowing the damaging EU activity to continue with it's detrimental effects.
As for reading the agreement one is signing, that should be directed at the EU who, apparently, had no idea change was specifically allowed for in certain circumstances. Boris clearly saw there was an agreement that the EU was willing to sign and despite the obviously damaging bits, it had the right written into it to be change when the issues became obvious to the fools who actually wanted it. Bully for Boris. Raspberries to his critics.