Sure, just as a large segment of those Labour voters are going to be Blairites and a number of Liberal Democrats are going to be center-right. All-in-all, it quite possibly balances itself out. Like I said though, in no way is that data representative of the true diversity of UK political opinions. There’s a wide range of factors that go into deciding a person’s position of the Left-Right political spectrum (a concept which I think is flawed anyway), and although the way someone voted is a good indicator it doesn’t always show the full picture.
I’m inclined to agree nowadays due to the breakdown of both class and partisan affiliation. I think the debate really is about whether or not the British public see ‘Left’ or ‘Right’ ideas as more competent than others, rather than identifying specifically with the Left or Right wing themselves. That said, I think that a large segment of the population probably do view things in terms of Right or Left rather than just going for competency, and their opinions should be factored in, but overall you’re right. I’m only using the data to blow his claim out of the water that an individual’s decision to join a party somehow represents the political makeup of wider society.
As I said, the data is flawed, just as yours, but it represents a far wider segment of the population than yours. (To be honest, represents is probably the wrong word to use given the different concerns that people put into voting.)
Your own data is far less representative of the population than the data from the GE too.