Lonesome EJ, you say <<,I visualize the political spectrum as a line extending left to right through Communist,Socialist,Radical,Liberal,Democrat,Moderate,Republican,Conservative,Reactionary,Fascist,Nazi.>>

So what do you call an Australian, who thinks that Australia should have its own head of state, rather than the British Monarch,(= republican), that Australia should have a democratically elected government (=democrat)and who would vote for a government with socialist policies ( = socialist)?
What about an Englishman who believes in the abolotion of the monarchy (=republican)and is a firm believer in Marxist/ Leninism (=communist).

Or indeed the stated position of Sinn feinn, which is in favour of a socialist united Ireland (= republican socialism)

Your model above may work if the words "Democrat" & "Republican" are shorn of there original meaning, and used only as names for U.S. political parties, but it is just a bit confusing for people outside the U.S. Regards, Eddie