Uncomfortable Questions?

An interesting debate has been taking place here, where we've all been discussing the "Unionism in the 21st Century" document recently published by The Union Group.

I have four main problems with the document:

1. The Union consists of four countries, not just N.Ireland, there is very little acknowledgement of this fact.
2. There are no solid arguments put forward for the Union; I would've been interested to find out what exactly made these guys Unionists in the place.
3. Linked with 1), the emphasis is all on N/S links, for the union to be strengthened then we should be concentrating more on the W/E dimension.
4. The overall tone is negative, apologetic almost. Unionism is a political philosophy, no more no less.We have nothing to be ashamed for if we believe in this philosophy; we should be proud, not sorry, for being Unionists.

Having said that, the Union Group have done the wider movement a service by opening a debate and there are other points in the document that I'd agree with. What Unionism needs now is an open and honest appraisal of where we are and where we want, or more importantly, need to go.
Nothing can be taken for granted in the next 10 or 20 years, a point which was emphasised in this document last year:

With the population of Northern Ireland rapidly changing, Unionism should not (and actually cannot) any longer rely on demographics for its survival. Not only is it a good way to lose a fight that ought to be won, it is morally wrong to expect complete but exclusive support from one tribe. If the only reason someone supports an argument is an accident of birth, then there was never much of an argument to begin with.

Political Unionism now pulls in approximately 35% of the electorate at the ballot box, although I'm convinced that, at this present juncture, a clear majority for mainly economic reasons are still in favour of the Union continuing. But that extra 15-20% required to make the Union safe is, by no means, a guaranteed one.

For any N.Irish unionists reading these are the all-important questions:

Why are you a unionist?
Take away any religious considerations.
Ignore your "history" and your "cultural backgrounf".
Refrain from pointing out the weaknesses of the opposing political philosophy on this island.

And again ask yourself, why are you a unionist?

We, collectively, will need some pretty good answers to that question if we are to have any chance at convincing the 15%-20% apolitical/apathetic I mentioned earlier.

I hope to outline my own reasons for being a Unionist over the next few weeks.

Update 3rd July:
Chekist has answered some of the questions I've posed here.