This raises an important point, especially as it pertains to the civil war. This country nearly split itself in two because there were two very different ideologies that simply were not compatible.
The US is a fairly large nation geographically with no shared cultural heritage to speak of and greatly differing political beliefs. I don’t know the answer, but we really need to at least think about how we can expect all US citizens from liberal Californians to conservative Texans to ever be satisfied with the state of the national government we share.