The debate about how we elect MPS is interesting. It demonstrates the black and white nature of our politics.
Black says our way is right and the white lot would ruin it. White says the black lot are ruining it.
The reality is that black and white are both grey. Their ways are more or less the same. It doesn't matter which one is in power.
One faction does better under the blacks. Another does better under the whites. Most of us do better when times are good and worse when they are bad. And a government, of any hue, has little control over that.
So how we vote for our MPs matters little.
We have first-past-the-post now, which means there are safe Tory seats, safe Labour seats and the LibDems, Greens and other fringe parties may get an odd seat here and there, but are never going to gain a majority. Once a blue moon, neither black nor white gains an outright majority and the LibDems, or one of the other fringies, may be offered a coalition.
We are offered Alternative Voting, which would still produce safe seats, but might give the fringe parties a better chance in the seats which aren't safe. This might increase the number of times when a coalition is needed.
So what? European countries often have coalition governments. Germany does and Germany is doing better than most of us.
We have a coalition and the wheels have not fallen off. The LibDems are getting a lot of stick for taking part, but all political parties get stick from other political parties all the time. The punch and judy show at Question Time demonstrates this. The only other people who behave like this are football fans.
The party we vote for, the way we vote for them, are just details. When we get fed up with one lot, we can vote them out, whatever voting system we use.
People in Zimbabwe and Libya would love to have any parties to vote for and any way of voting.