Camaro wrote:QUOTE (Camaro @ Aug 8 2012, 02:53 PM) The two main US parties encompass 3rd parties.
Republican's, for instance, are made up of about 5-15% Libertarians... people who disagree with Social Conservatives and war, but agree with Fiscal Conservatism. I am sure that there are also Libertarians who are members of the Democratic party as well, who value liberal social positions more and are willing to put up with Democrat's less than conservative fiscal position (not that Republicans are really any better in this regard).
The make-up of these two parties is constantly changing over time because of this.
That is the idea of the "big tent" party.
Our two parties are like the [coalitions] in other countries.
I took that quote from the Creationism thread because it's OT there but led me to some interesting thoughts on the inherent flaw in the thinking.
In a multi-party system the electorate's views are represented by the proportions of each party in the final parliament. The ruling group is then made up of a subset of the parties that can work together and achieve a majority. The compromise required to do this should end up with a view that reflects a middle ground supported by the electorate.
In a two party, broad church approach the compromise is made by party members. However the party members don't reflect the electorate, they reflect approximately half (depending on the current balance of electoral power and vagaries of the voting system) of the electorate. So you end up with two semi-radical compromises that you have to choose between rather than one moderate (relative to the electorate as a whole) one.
Firstly Cam is wrong when he suggests that this is equivalent, it demonstrably isn't. Secondly it's a system that contrives against co-operation and moderate politics as if you fall between the parties you have nowhere to go.
Finally it's going to cause trouble when you elect different parts of government from different parties as they're hell bent on blocking each other wherever possible (which is fine if the status quo is working well and a total cock up if it isn't).












