Tories Maintain Poll Lead

The YouGov poll conducted in the wake of Cameron's bactracking on the Lisbon treaty referendum and outlining his position on Europe is as follows:

CON: 41% (nc)
LAB: 27% (-1)
LIB: 17% (+1)

The total for “others” is at 16% but we do not know what the breakdown of that figure is. Even the detailed data released this evening does not specify what UKIP and the BNP, in particular, were recording. So all within the margin of error but from Labour's perspective the trend is in the wrong direction. [....] So the first conclusion is that the Tories don’t seem to have been damaged by the abandonment of the Lisbon treaty pledge in spite of fierce criticism being reported both from within their ranks and outside - perhaps reinforcing the point that very few voters regard Europe and EU-related issues as central to their view of the coming election.

Interesting - I was expecting more of a backlash. But does this mean that (1) people on the whole don't care about Europe as an issue, (2) the public's minds are already made up as regards voting intention, or (3) the anti-Labour mood is still strong enough to override any criticism of the Tories? And if (3) is true, can we ever escape from Buggins' turn politics? How?