How is that a con?
It was a problem created by cakeism.....Brexiteers had a choice, UK stays in CU and SM or a border in Irish Sea.
There never were any other solutions, but Brexiteers couldn't take responsibility for their actions, which is what you are doing and blaming it on the EU.
'it was temporary', 'it would never be invoked' said the eu, temporary measure whilst a trade deal was discussed. Then they pulled down the shutters on any trade deal discussions thus invoking the backstop and creating tariffs within the UK.
It'll be interesting to see the wording on the 'minor alterations' Boris is putting into law, in my view he hasn't gone far enough. Repudiate the whole WA and leave.