But you can start talking to the other side instead of name calling. I have many conservative friends and we love arguing, but in those arguments we find common ground and that is how we stop dividing the country.
We will never agree 100% of the time, but politics is the art of comprise. When it becomes our way or no way the system fails and the far right is there now. (And probably the far left, but they lack organization) But we need to remember that they are a small portion of the country and need to be treated as such. Not excluded! Even your worst enemy may have a better way sometimes.
Lastly, Sun Tzu said always leave room for your enemy to become your friend.