This was from the 2016 social attitudes study in Northern ireland which seems to suggest that 'unionists' are well short of being a majority of the population. When asked if they were unionist or nationalist etc only 29% defined themselves as unionists; and only 24% described themselves as nationalists. A greater number didn't describe themselves in those terms. Being a majority does not mean there are more than unionists than there are nationalists - it means the majority of the people are unionist. That doesn't seem to be the case. So it may show nationalists have a long way to go but it also suggests that a great many may be more open to persuasion than some suggest. In the same survey only 17% described themselves as "very strong" unionists. I take it only a fraction of those would favour an actual uprising should there be a democratic vote to unite Ireland.