“Historically, the color red was equated with Communism.”
We know that the reason they used red for Dems is that they are closer to the communists and to label them red would be too close to home.
If anyone here thinks that the Red / Blue switch was not intentional, you're on the wrong web site.
They didn’t use red for the Dems. They used red for the party out of office, and blue for the incumbent party. The deviation from custom came in 2004 once everyone started nattering about ‘Red States’ and ‘Blue States’.
Communism is a spent force. The PRC and Vietnam are fascist rather than Communist now; in North Korea ‘Juche’ is a bizarre form of oriental despotism and emperor-worship dressed up with Stalinist-style police, concentration camps and bad uniforms; Russia may not be democratic, but they have a market economy and Christian religious education in their schools.
Red is a fine color (just ask any Nebraska Cornhusker fan). We liberated it from the Commies when we won the Cold War. Besides it alliterates with Republican.