Rather than base my analysis/hopes about "the big one" on crude sectarian headcounts, I would be more minded to study what peoples attitudes are.
eg,
http://www.ark.ac.uk/nilt/2007/Polit.../NIRELND2.html
Furthermore, with the Celtic Tiger falling apart, I don't think a lot of the 66% of those favouring the Union, will be changing their mind any time soon.
By the way, if I can be convinced that me and my family would be better off in a "United" Ireland than by remaining part of the UK, i'll vote for it.
Similarly, if anyone can convince me why it would be a good idea that the International football team I support disappears, I'll buy the ticket.
Unfortunately, people demonising/vilifying/labelling me for making considered, grown up, decisions on such issues won't be going anyway towards convincing me that those people are right.