"There are plenty of examples from recent history to amply illustrate the resultant dangers."
There are indeed - Mrs T described Pinochet's one party state that was achieved my mass murder, rape and torture as her kind of democracy and its architect as "a hero of democracy"
Britin has being selling arms to one party states throughout my lifetime and a year or so ago sent it's Prime Minister to one of them while a journalist was being administered 1000 LASHES .
It seems to depend on which party constitutes a one party system to some people
Jim Carroll