There are so many people looking for an excuse not to vote Tory, trust me on that. The problem is, and you can see it even in this thread which is a highly left leaning one, that there is very little self-critique. I well and truly agree that the Tories, for example, are generally a bunch of pricks and their behaviour, policies, and the like do not deserve to be rewarded with support from the general public. Yet, the opposition isn't doing enough to pull the swing voters away.
Look at Sweden and Italy, almost no mention of that here at all. If there is, it is just some sound bites about 'the far right'. Unfortunately, the left is being rejected everywhere at a time where they should be clearing up. I know people on here will try to argue that I am wrong, but I don't know how many times I can say it as someone who falls into the category of a swing voter myself. The left need to stop blaming everyone else and sort themselves out, they'll then win easily and probably stay in power for a considerable length of time. A large chunk of people voting for the Tories come election time aren't coming out of the polling stations with massive grins on their faces but they'll keep voting for them until they have another party to vote for that they can relate to better on all matter of levels.