And they have been out for about 100 years. The problematic issue is the status of Northern Ireland, where a slim majority, or clear plurality, still favor remaining in the UK. The idea that everyone would be happy if “the Brits” just “left” Northern Ireland is incredibly naive. The Good Friday agreement already provides for the possibility of referenda on the future status of Northern Ireland. The suggestion that a sudden unilateral decision to cede Northern Ireland to the Republic of Ireland would reduce conflict and sectarian violence (which have already been very successfully reduced by the painstakingly negotiated GFA) is essentially too silly to even comment on.