isn't it just a hop, skip and a jump to a United Ireland? It seems to me like a hugely risky thing for them to do, massively risky. Not only will they only have a tiny influence in the House of Commons, but there is potential for far greater alientation across all sides, destabilising NI potentially.
I think it's incredible to think they would do it, it has worked for SF to an extent in the past, but SF don't need NI to be functional. It's better for them if it's not, but if the State is failing how can one argue for the constitutional status quo to remain?
Could the British Government quickly use the opportunity to increase the Republic's role and off load its own obligations?