But is the chaotic morass that you end up with from a PR system any better?
Is it necessarily a chaotic morass, or is that not just the worst possible case? IMO it'd be the latter, in which case you have to weigh it and the likelihood of it against the likes of the current situation. Is PR a chaotic morass in Belgium, or New Zealand?
At the moment the major check on the government's power is the danger of a backbench revolt. With a PR system the effect is the same but the parties involved are even more disparate. Furthermore if the minority party doesn't possess enough seats to create a majority you end up with the government having to make a coalition out of several minor parties. All of which means you end up with even more ridiculous amendments being required for bills to pass because every single party wants to have their say.
So the major check on the governments power....is the government.
So you end up with the same situation, more amendments to bills in an attempt to please everyone and on top of that you get fringe party loonies into the mix.
How many fringe party loonies? Isn't there a distinct possibility of PR working
against them, because they can no longer target specific seats? The BNP, for example, has a strategy of standing in areas of racial tension - would their chances of winning a seat in those specific wards not be better served by the current system, where their campaigning and finances can be focused?
Isn't the point of democracy trying to please everyone? That's assuming, in any case, political parties in government and opposition would always be diametrically opposed.
I fail to see how this is any better than the first past the post system.
It reduces disenfrachisement, which in turn should increase the turnout. You can look at the chaos of Italys results, sure, but they also got an 85% turnout. The latter is most definately a healthier statistic than that for the UK system.
Furthermore PR systems will actually penalise independant MPs who campaign on local rather than national issues because who's going to vote for them outside of their constituency?
Dependent upon the PR system, though. For example, the Scottish parliament uses a quasi PR system whereby there are both constituency elected MPs and PR elected MPs, something which IMO has worked very well in proportional terms. How many MPs are elected on local issues anyways, though?