Stepima had a similar post today, but only about religion. No politics involved.
Yesterday I wrote about being in the middle and as I talk to more and more people, they identify with the right wing and not with the center. I've heard people disparage the center and say they would never go there. This made me think of an example where every religious Jew thinks they are the center. Orthodox Judaism.
No matter what you do or how you practice you feel that you are only doing what is absolutely required. People who don't follow exactly what you follow are "not as religious," people who do more then you do are "crazy fanatics." As does everyone else, I only do what is in the shulchan aruch. Nobody feels that they are being needlessly machmir. If someone is extra machmir (stringent) in a certain thing it is because it needs it and anyone who is not machmir on that specific thing obviously doesn't understand. Anyone who is more maikal (lenient) then you is obviously missing the spirit of Judaism. "Who cares if they got a psak to swim on shabbos, it just isn't done by normal Orthodox Jews." This is necessary for religion because we don't want to think we are doing things that God doesn't care about, otherwise why inconvenience ourselves. Also if we are doing something to inconvenience ourselves, it better be something that God cares about. That makes everyone else who is not following exactly what your following not as practically Orthodox as you are.
The same should be true politically. We should be looking at ourselves as the center, that we are no more nationalistic that requires. We are no less nationalistic then requires. That puts us squarely in the center. In your religious observance you don't associate yourself by other people's standards. Nobody thinks, "He's Normal Orthodox and he doesn't play ball on shabbat, so if I play ball, I must be left wing." They think, "He's frummer then you need to be. My rabbi told me exactly how to do it without breaking shabbos."
We should be defining ourselves as middle of the road. No matter where we are on the political spectrum. In our own minds the spectrum should rotate around us.