Build it and they will come

Screw it up and they will stay away:

Numerous studies have shown that immigration is neither a panacea to solve economic or demographic problems, nor the cause of economic decline, mass unemployment or public deficits. The alleged positive and negative effects of immigration tend to get wildly exaggerated in public debates. My argument is rather that immigration is a bellwether phenomenon that reflects the more general state of society and the economy. Thriving economies attracted migrants, stagnant economies deter migrants. Rising nations attract migrants, declining nations try to keep them out. Anti-immigration politics reflect a culture of fear and an overall lack of confidence and political courage. Rather than a cause for celebration, declining immigration therefore signals a more general state of crisis.

 Screw it up worse and they will leave:

The recent economic crisis has resulted in Ireland’s unemployment rate going from 4.4% in 2006 to over 14% today. During the same time period, emigration amongst Irish people has increased three-fold.

Immigration isn't the problem. It's the economy, stupid.

And when I say 'stupid', I'm looking to you, Daily Mail and at certain people who ought to know better.