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Yep. If you want to make statists wet themselves, point out that democratically-elected constitutional republics have committed more oppression and murder than any other type of institution in the history of the world, including emperors and kings.

It is true but this is rather attributed to the combination or recent technological advances and population increase rather than democratically-electd constitutional republics.

I am sure that if nuclear bombs, nuclear warfare and 3 billion people existed 3000 years ago the Ancient Egyptians would kill or enslave most of them.