The blamed Europe too. We just learn to ignore them.
Europe would make slightly more sense given the shift to UKIP, but even so, the shift to Labour was much larger, so I think that should tell you that the economy is a much larger issue to most people.
Well aren't UKIP opposed to gay marriage as well? I think the Tory right view their loss of votes to what they see as a break-away Monday Club-style Tory to be why they lost many seats - a splitting of their votes (to a small extent) allowing Labour in. I'm not seeing what's so incomprehensible about their stance, tbh.
That's part of the reason, but I just don't think they get that voters are genuinely going from Lib and Con to Lab.