As someone else already pointed out - a "no deal" in reality means "no deal until any deal is reached". UK cannot be on WTO terms with the EU forever, but by going on them in the first place the economy is taking a hit until something else is negotiated. And that negotiation will be exactly the same as now - backstop, immigrants, EU regulations - none of those issues disappear with a no deal. They just get delayed a little bit. It feels like a no deal is hitting your own face out of spite for the other side.