You mean like the one the National Socialists manipulated to come to power? In modern day multi-cameral states I see no fountain of awesomeness that automatically suggests that is the way. I mean look how dumb Germany can be.
They've pretty much fixed that. In order to get a seat in the Bundestag you have get at least 5% of the vote. So the small, smaller parties are kept out. Also the upper house, the Bundesrat, (which you don't hear much about in the news) is composed of folks appointed by each State to represent the interest of the States and not the people (like here, before the 17th Amendment). Also the President of Germany is selected by the Bundesrat, while the Chancellor is selected by the Bundestag. The President is Head of State; the Chancellor is the Head of the Government. It does actually work pretty good. The parties are used to working together to actually compromise on legislation (unlike here where compromise is "Doing it the way the Democrats say".) which puts them a lot more middle to right of center on the road, then one would expect.
And the current immigrant thing (up until Paris), was that Germans still feel guilt about the war, so that was a way to show the rest of Europe and the world that "Hey, we're nice guys now."
