What significant numbers of voters in Italeigh have in common is a profound sense that conventional politicians have let them down. They lie, they cheat, they make promises that they have no intention of keeping - and, most seriously, they preside over a collapse in living standards that throws thousands of people out of work and creates real, palpable misery.
This triumph of pragmatism and realism over vision means the two major parties are essentially advocating minor variations of the same sorts of policies. A major economic upswing might still save the Tories, just as a 'Black Wednesday' style catastrophe could catapult Labour to a majority - but neither is that likely in the 26 months before voters go to the polls.