"Every single little bit of the jigsaw that made it possible to build a life has been fragmented."
"That's such a childish question," the former Tory cabinet minister said at one point.
"We were told it was all going to be so simple," Chris Warburton said.
Michelle O'Neill has just become the first nationalist to lead the region's government.
Tory MP and Brexiteer told on his GB News show: “It hasn’t benefited British agriculture one iota.”
Tory minister faces backlash for now telling firms they need to "adapt" as extra border checks will squeeze their bottom line.
The stark findings come on the fourth anniversary of the UK leaving the European Union.
This will add £300m a year to the price of trading with Europe.
The Brexiteer minister insisted "businesses are used to the cost of doing business".