Firstly, Northern Ireland is not your normal western liberal democracy. As Mick Fealty said, there exists two worlds in Northern Ireland. One is progressive, cosmopolitan, tolerant, ambitious. The other is a minority that extorts, blackmails and wields arbitrary power over a moderate majority. The politicians are complicit with these economic vandals and thugs.
The working class enclaves in inner-city Belfast have soaring poverty and joblessness rates. Once the voice of hardline unionism, the DUP has become increasingly mainstream and is seen to represent these communities less and less, with a similar process happening on the other side of the political divide.