Britain has a two party system as a result of First Past the Post and as a result fundamental fail to receive real debate. Britain has seen a major shift of power to Europe with no democratic debate. This is because the division on Europe has been within the two main parties. In any sensible political system the pro-Europe and the anti-Europe factions of the Tory Party would split but they are bound together because to fight an election separately would be electoral suicide.
In 1983 a fundamental issue did force it's way into the political system when Labour fought on a platform of unilateral disarmament. At the time it was the hottest political issue with CND able to mobilise unprecedented numbers at demonstrations. During the election at a nonviolent protest at a nuclear bomber base 750 peace campaigners were arrested. Yet still there was no real debate. Before the election the debate had been between CND supporters and the government. Once the election began the media focused on the Labour Party defence spokespeople who clearly did not believe in the policy they were advocating. The result was an electoral disaster for labour that only the distortions of First Past the Post could cover up.