This message is probably going to be different from the kinds of messages you are used to. I hope to avoid the typical, partisan based propaganda that quickly overwhelms most political discussions.
A couple of years ago I came to the conclusion that the current level of divisiveness in America is the single most serious problem our country is facing. It is more serious than the many, potentially catastrophic, problems we face, such as global warming; the threat of nuclear war; the unstable economy plagued with a huge and growing national debt; and others. Our divisiveness problem is more serious than those because it is the one problem that is preventing us from adequately dealing with any of them.
The true source of our divisiveness is due to the fact that our political parties are in control of the lawmaking branch of our government, and they are always fighting to gain more power for their own parties. Our lawmakers are also called our representatives, but they aren't representing us. They are representing the party that sponsors them. Don't take my word for that. Just pay attention to what they say while in office or campaigning for office, and you will see. Modern information technology certainly amplifies their divisiveness and propaganda but isn't the actual source of it.
The partisan bias in the legislative branch is so divisive that congress can't possibly make the rational compromises that the majority of citizens would actually want. Our lawmakers/representatives are dividing us rather than uniting us in civil, effective, discussions. And...
...that's our fault! We are the ones that elected them!