On a national level, the problem with left wing political parties, is that they inevitably are always run by those with the same left wing attitudes that result in career choices that favour socialist value over earned income. I don't say that is a wrong thing to do, but it does tend to result in a lower net standard of living for the individuals as a whole.
The problem comes when you take a bunch of politicians who have an automatic bias towards making decisions that lead to depravation and dependency of state handouts, and funnel them into government. State dependency rises, the welfare state balloons, those living off the fat of the welfare state receive benefits disproportionate to their value, the efficiency and efficacy of state monopolies diminishes, and over time, the state slips further and further towards bankrupcy.
The socialist middle ground are meant to be the party that believe they can create balance, but they haven't a clue how to lead a party (or even a conga line), let alone a country. So inevitably we need see a swing back to the. Tories to cut the fat of the past 13 years of gorging on the state apparatus. For some that might not be too palatable, but for the survival and the strength of a nation, it is essential. In 8 years, maybe even 4 if your lucky, the left may see a return to inflating the welfare state again, but until then, the annual cull of the apparatus itself will continue, and the reductions in the drawdown of those who depend upon in will increase.
Sadly, dependency on the state means handing over your life to the whim of governments to run for you. I can't for the life of me understand why anyone would choose to do that unless they had absolutely no other option, but some do, and. I do not believe in the myth that, 'it's a tiny minority'.