It seems that Cameron's social democrat government is determined to alienate as many people in the country as possible. Lately we've had the fiasco of the PCC elections which 80% of the population couldn't be mithered getting involved with.
Now they are determined, despite a total lack of interest from the populace at large be they gay or straight, to redefine marriage. Yet things that do concern the public, such as the EU, are completely ignored. I suppose as this government has no mandate they have no reason to worry what the electorate want or believe.
On the question of 'gay marriage' there is a wonderful article by Brendan O'Neill in Spiked Online. A must read I would say.