Great write up! In my opinion political parties and or even communities can and have always caused a divide. The divide is almost always from a lack of understanding. For example, if someone says they represent the communist party, democrats, republicans or what have you a particular set of norms has already been attached. I don’t see it happening anytime soon but the only way to close the gap is getting to know our neighbors without prejudice at all levels. For example, the internet was meant to bring us closer but the average person doesn’t even know the people living on their block or floor of their apartment.
I think most of it comes from fear, fear to budge from a stance or position we take, and that keeps us stuck where we are. Hopefully, more and more people start realizing this. I see it happening, tags are not as effective anymore, and people are realizing it's not getting them anywhere.