Societies are more complex then that I believe. At some point, people must wonder why are we working together? We must share somewhat similar desires in what we want as an outcome. That means, we share a similar vision for the environment we want to live in.

Is this vision drastically diferent between the American left and the right? I'm not sure. I still feel people are looking for as much personal freedom as possible while maintaining high personal safety.

In that regard, if its true this is still the shared outcome by all Americans, then the disagreement is in how to best achieve it. In that case, there will be someone who'se idea is actually better. If coastal cities are the major influences on this end goal, could it not be that their method works better?

I'm not wanting to downplay the right. There are most likely specific issues which could be better solved with right leaning policies, this is all really hard to predict. The point I want to make is that not everything can be bias. The center isn't necessarily the unbiased position. Its possible the right or the left is actually the better solution on one issue or another. If say the left was overall a set of better solutions, it would be unfair to say that people who believe in those solutions to be biased, they might be unbiased, yet, the unbiased truth is that the set on the left is simply a better way to achieve the desired outcome. This would similarly apply to the right.