Fahran wrote:-snip-
20th Century communists almost always inherited existing autocracies. Czechoslovakia has a fairly free 1946 election before the KSČ took over, but that’s probably about the only exception.
Right-wing nationalistic and capitalistic authoritarians, on the other hand, overthrew plenty of democracies over the course of the 20th Century. Pinochet, to point out an example you used, transformed a democratic country into a dictatorship.
While I would agree that the left-wing has had a larger body count, doubly so if you only count the Cold War after most of the bloodiest nationalist regimes of the Century are out of the running, it was indisputably the right that posed the greater threat to democracy.