Europe won't carry the load. As they did with Hitler, they'll silence their own people in an attempt to please the Islamists. Islam has already demanded Sharia law in some parts of France, England and Holland. Personally, I wouldn't be surprised to see the same thing happen in Detroit within ten or fifteen years. During the cartoon wars, the politicians ignored the fact that some of the supposed cartoons were not actually cartoons done by Danish cartoonists, but were taken from other sources by Islamist clerics because they knew the original cartoons were not offensive enough to cause riots. The US media has followed suit, ala Comedy Central. In France, the media deliberately downplayed the riots because they didn't want "right-wingers" to get political mileage out of it.
I think Europe will go Islamist without even token resistance.
As to the Constitution party, any third party has a tough time. You can't get large campaign contributions unless the primary contributors believe you have a chance to win. The way to go would be to start at a grass roots level, targeting districts where a third party has a chance, or even in local elections where the political affiliation of the candidate often isn't stated.
A third party would have to be a long-term project. It's also difficult, because once in office, you have to deal with all issues, not just those personally important to you. For example, border security was hardly discussed at all in the 2004 elections, but it threatens to eclipse everything in 2006. Personally, I think the Dubai ports deal was the first shot in that war. It was the tipping point, and is IMHO, the ONLY reason Bush is in trouble. On the WOT, the people who hate Bush for this always hated him. The Rats will push for total open borders, and are only grandstanding because they've found out they can't outflank Bush to the left (as they've already got all the votes they're going to mine out of that), so they're sowing discontent on the right. This does not mean I agree with Bush on borders, it means I do not think the alternative of Rats is a real alternative.
Ross Perot made inroads in 1992 for several reasons, but don't forget that his primary reason for running was to hurt Bush. I've always believed he had a deal with the Clintons, but such things are never proven. However, the media covered him heavily and positively because he was hurting Bush. It's the same reason they gave McCain good coverage. A party that has a legitimate shot at winning, and would move the country more towards the Constitution would get scathing media coverage, and the MSM still wields a lot of power.
I'm not yet convinced of that. At the moment the USA is fighting Europes fight, and Europe with a few notable exceptions (UK,Poland, Italy) is stabbing us in the back at every opportunity. Should the usa temporarily withdraw from the war, it would be Europes turn to fight Islam. There can be no compromise, Islam will not allow one. I think it might be a good idea to let the Europeans see what it really means to fight for survival with thier sons and daughter instead of ours.