The problem isn't the name calling. It is that the name calling actually works on people too lazy to think for themselves. They get their marching orders from whatever talking point memo is out (both Left and Right wing) and march in formation.
And while I don't agree with many people politically, I at least have respect and can converse with people I don't agree with, if they at least have a reason for their political beliefs (wrong or right). I often have common ground with people I normally wouldn't agree with, because my viewpoints are reasoned, and sometimes we have the same reasons for the same views.
Above all, the drones are massive and collectively drown out the reasoned voices. And this is to our own shame!