We are not as divided as some commentators assume. To be sure there are political differences, but those differences are most intense among the people (around 20%) who regularly follow politics. An even smaller number are passionate partisans. Most others are pretty apolitical and more attuned to the day to day life around them, which may turn out to be the more sensible use of one’s limited lifespan.
There are always divisions of opinion about any topic you can think of, i.e. sports, music, movies, tv, hobbies, local organizations, which way the toilet paper roll should face, etc., etc. In fact those other things are what life is really about, and people who may be at loggerheads politically nevertheless share common ground in many other areas, while their political cousins may be oblivious to, or on another side in different areas.
The people who fret most about “division” are themselves frequently part of the problem, although to them it is those other people who don’t see things the right way. It is only possible to buy into the idea of deep division if you believe that everything in life is political. There is some of that on all sides, but it is especially pronounced on the Left (as distinct from “liberal” in this case), where true believers don’t see any distinction between the political and the social, which in turn then applies to state and society. To them everything is political, and they take the measure of things through an ideological continuum. They inject politics into all aspects of life, ruining much of it for everyone else. Ironically they are the gift that keeps on giving for the Right, for they engender far more annoyance than sympathy. That is why personally I am not so much “Right” as I am anti-Left, for the reasons indicated above.
Excess political passion is like a social disease. The fundamental basis of any ideology is virtually always irrational because its foundation can be distilled to a hierarchy of values. Values are what’s left when we can’t agree on the facts. A civilized society can address many problems based upon a common understanding of the facts, which at any given moment are true or false, and involve some degree of rational resolution. But why doesn’t everything work this way? It is because the remainder are based not on facts, but values.
Society functions because there is a common consensus regarding the way many things work. We can agree on the time of day, or turning right when the sign points that way, or noise coming from some direction, but not whether it is good or bad, because that involves a value judgement. When division of opinion occurs that is based upon values, or where a particular value belongs in the hierarchy, there is no obvious, easy rational solution and because of that we have conflict. Then the problem will have to be addressed either democratically and peacefully, through compromise, or otherwise through force, which often involves violence or repression. Some at the extremes become so incensed with regard to others that they will consider the latter as justified if it is in keeping with their viewpoint.
But we know that in the long term nothing is permanent and the future is unknowable. Excess passion is simply wasted energy. As things change continuously we may find ourselves strange bedfellows under new circumstances, and yesterday’s opponent may be today’s friend. The political spectrum is not carved in stone and the issues of the day often change. This is common sense to people who are less politically inclined, so most of the “division” the dividers fret about is happening on some other planet.