So I just listened to Michel Barnier, the EU’s chief Brexit negotiator, say now in Dublin that "if the UK were to leave the EU without a deal, let me be very, very clear. We would not discuss anything with the UK until there is an agreement for Ireland and Northern Ireland, as well as for citizens’ rights and the financial settlement"
So, in other words, Barnier is saying that even if the UK were to leave without signing the withdrawal agreement, it would have to accept the pledges in that agreement, including on the backstop, if it ever wanted a trade deal with the EU.
Now this is what I hate most, this idea that the withdrawal agreement cannot be renegotiated simply because the EU says so. This threat of a permanent no deal scenario that seems to scare the living daylights out of Parliament in the UK is the exact behavior from the EU that makes some prefer a No deal brexit to a deal.
So What are the disadvantages of WTO Brexit(Clean Break)?