Ireland had and have plenty of other crops and livestock. What Ms. Patel doesn't realise is there'd more likely be a food shortage in the UK because we export a **** tonne of food there and Westminster can't force us to export like they did in 1845 because the country isn't dirt poor anymore!
But sure look, making idle threats which immediately remind everyone of what is widely considered as a deliberate act of genocide by the UK on the Irish might just keep the woman her seat next time elections come around with the current state of the nation.
I think you've summed up exactly how the rest of Europe see the brexis negotiations. We're bewildered at the UK's bewilderment that the EU won't give them an easy ride!