I'm sorry, when was everyone equally franchised? Between Jim Crow, Women's Sufferage, and Civil Rights you've got what? The mid 60s to mid 80s as the heyday of American Democracy? Having Nixon smack in the middle of that doesn't really help the arguement.
If we define democracy as universal suffrage and equal vote weight, democracy has been more of an aspiration and less of a reality since the beginning of time. If you don't define democracy that way, then we're talking past eachother.