You're probably broadly right there about everyone being apathetic, but the UK is well marked by being very low on any sort of strong belief system. We never had, for example, a string communist or fascist movement throughout the first half of the 20th century, the same time as which much of Europe was destroying itself as those two factions fought. Similarly, we have absolutely no equivalent of the Christian movement in the US. The Church of England is spectacularly liberal- in my view, much to its credit, but sadly it's so liberal it is falling apart (attendances are down, foreign parts are threatening to break off as it is too easy-going etc).
But indeed, the problem is that this creates a void (and some feel this is why fundamental Islam catches on n some communities- if there's nothing to believe in, people will start grabbing for ideologies if presented with them). Hawking once made a point that he thinks science will succeed in explaining life where philosophy fails- but science doesn't inspire anyone in that way.
I honestly believe there needs to be some sort of secular replacement for religion that is independent of political authority but can attempt to define a moral platform. Actually that;s virtually what the CofE has become, but it's too tied to Christian tradition for peoplre to take it seriously any more.