The Democratic Party, being a coalition of groups, including blacks, whites, browns, gay, straight, educated, uneducated, religious, atheist and every group in between, typifies what it means to be a democracy.
Republicans, being 90% white, are much closer to the Nazi Party. Their racist beliefs and naked hatred for minorities only underscores that perception. Their zany and damaging policies don't do anything to change that perception.
You are correct.
Except you avoided the issue altogether. The Republican party is Fascist, embracing the values and methods of Adolf Hitler. This is already common knowledge, and is only denied by Republicans themselves.
However, we are discussing Communism, not Fascism. The Democrat party is Communist, embracing values and methods of Joseph Stalin. This is also common knowledge, and is only denied by Democrats themselves.
The only thing both parties have yet to do, is to round up and exterminate/genocide the dissidents. Most likely, since the far-right and the far-left both have common goals of enslaving the American people and establishing a corporate oligarchy, they will exempt each other from the Extermination Process, and only genocide/democide Libertarians/Tea Partiers/Occupy Wall Streeters/Muslims/etc.
They'll probably call it the "Final Solution to Terrorism." And everyone will buy it, because they'll probably force us to fight for our lives by that point, allowing them to label us as terrorists.