This of course makes perfect sense. With the personal and economic freedoms and common rights of EU citizenship, a sense of both the Republic and the North being inside a much wider union took the edge off some of the grievances of Irish nationalists, at least to the degree that this was a contributing argument for ceasing to pursue reunification by violence. It is a commonplace that Brexit undermines the intellectual and emotional basis of the Good Friday agreement – it certainly does. I hope Brexit will not result in renewed violence, but that it will result in a strongly renewed demand for Irish reunification I do not doubt – and I will support that demand.
The sympathy that demand for Irish union will invoke in Europe post-Brexit is but one example of the extreme diplomatic isolation of the UK under the Little Englanders. Boris Johnson and Liam Fox will have no mates abroad, other than Donald Trump, Benjamin Netanyahu and the Saudi and Gulf tyrants; while Trump’s words of praise for Brexit will be backed by no trade or policy concessions whatsoever.