For an interesting (and unusual) perspective that does its best to ignore anything that is "all short-term and will be resolved within a generation." and tries to take a much longer and broader view instead, Charles Stross' post The Referendum Question is worth reading.

(I wanted to comment on it and leave a link to your last post, but you had to register and stuff so that didn't work out.)

This guy keeps surprising me with his smarts and insight. He shouldn't, because I know how clever his books are, but he seems like someone who could actually play a decent game of counterfactuals.