51% to 49% for reunification sounds like Ireland would be right back at war with themselves again. I’m guessing the IRA/Sein Finn/whatever they call themselves now...still have quite a few weapons.
Yes, 51% is not the percentage to make a decision to leave a union - it should be closer to 2/3rds
A return to a “Hard Border” will bring a return of the violence on both sides. This is well known. Unification within the EU is the best solution. Both the unionists and the nationalists have thrived without a border and peace has come to Ireland because of it and the Good Friday Agreement. Unification as a EU nation will benefit all.
BTW... both sides still have a few weapons. Don’t pin this on the RA.