By ripping up the EU withdrawal agreement, and betraying the good friday agreement with all the possible consequences of that
It'll be interesting to see what happens.....Northern Ireland stays in the single market for goods.
If UK rip up NI protocol element of WA it will damage the integrity of the Single Market and I guess contravene WTO customs rules.
Clearly the Tory govt is panicking, they have no systems in place for GB NI and they've realised their bulls hit plan of reimbursing NI businesses for tariff differences is unworkable.
Boris has discovered if you sell bulls hit, eventually it comes back to kick you in the nuts.
GB NI is just another piece of Brexit hogwash falling apart.