Politics is based on a friend/enemy distinction, which is narcissistic (we're good and they're bad). It's a surrogate for war, just like sports, and just like sports, there is "our" team and "their" team. And just like the artificial distinctions between sports teams, there are artificial distinctions between political parties. In reality there is about a dime's difference: they're two wings of the same party. The Republicans are the right wing and the Democrats and the left wing.
Again, same party, which is why you ended up with the Clintons, the Bushes and the Soeteros all being so friendly with each other.
Most people don't seem to understand this. They think they're candidate is an angel and opposing candidate is a devil.
Some people thought George Bush was a devil who was going to destroy the country, declare martial law and not leave office. They cheered when Barry Soetero was elected. When he was elected there was some who claimed he was going to destroy the country, declare martial law and not leave office...
Angels and Demons. In fantasy.
I said that politics was a surrogate for war. For sports.
Chris Hedges, in his book, War Is a Force That Gives Us Meaning, wrote this: "The enduring attraction of war is this: Even with its destruction and carnage it can give us what we long for in life. It can give us purpose, meaning, a reason for living. Only when we are in the midst of conflict does the shallowness and vapidness of much of our lives become apparent. Trivia dominates our conversations and increasingly our airwaves. And war is an enticing elixir. It gives us resolve, a cause. It allows us to be noble."
Robert Nisbet, in his The Quest for Community, also suggested people like to be in a group because it allows them to exalt themselves. It allows them to become part of something they consider greater than they are, even if it isn't.
During the time of the Roman Empire the government staged chariot races as part of the Bread and Circuses for the masses (the Reds and the Blues). Fans of each team would brawl in the streets.
Some people get meaning, importance and community out of supporting their candidates and parties. It's worthless, but everyone needs those three things.
Now the historical.
Government is the greatest killer in the world, and in the history of the world. It's the greatest oppressor, the greatest poverty-generator. The Founding Fathers considered it like fire, a good servant but a dangerous master. They intentionally tried to cripple it and didn't want it to be "efficient," because they knew that meant oppression and poverty.
People have generally got their meaning, importance and community from religion and family. But not so much anymore.
I've written before about narcissism, scapegoating, human sacrifice. Those things apply to politics, in fact is inherent in it.
The more politics dominates our world, the worse it is for our world. That's an eternal law of human nature.