The Nazis were the personification of evil. Case closed. There is no justification for emulating them.
Sorry, but you give the Nazis too much credit.
Granted, there's no shortage of evil in the Nazi's practices and policies. But the idea that Nazis are the World's Worst/Evilest Villains is largely a construct of American theater. I imagine a victim of the Lord's Resistance Army in today's Central Africa might be pretty dismissive of Hitler and his crew. And WWII's Japanese were no kinder to the Chinese and Koreans than the Germans were to the Jews. And perhaps you've heard of a little misadventure known as the Holy Crusades, to say nothing of ancient atrocities committed by peoples who lacked the industrial scale of the holocaust but lacked none of the, dare I say it, evil.
Our vitriol against the Nazi party is due to the fact that so many of our grandfathers were personally killed by them. My Grandpa was too young to enlist at the time, but he had a cousin who was on a bomber shot down behind German lines. Heck, our man James Doohan was himself shot up by Nazis (that's why the show is very careful to never give you a good view of his right hand with it's mostly missing middle finger -- Thanks Nazis!). So in the 1960's, they were fresh in mind.
In universe, I suspect that by the 2260's the Eugenic's War, WWIII, and numerous conflicts with aliens (if you count all the shows then this would include the Kzinti, the Xindii war, the Romulan War, and more than a little sabre-rattling with the Klingons). No doubt one of
those enemies had replaced the Nazis as the personification of evil in the popular imagination of the Federation-at-large by John Gill's time. He might have seen the situation on the planet as similar to post-WWI Germany and thought that adopting certain elements of the national socialist structure could have been controlled and used to good effect on that world. No doubt, centuries of separation from the tragedy of World War II gave him a bit more of a dispassionate view of what went on there.
Of course, it was a reckless experiment to have even attempted. And certainly it must have been hubris that made him even think he could try it. But I think it failed and devolved into a national attempt at genocide, not because John Gill decided in introduce that ideology into the system, but because Melakon, who had his own ax to grind, saw the potential and took his opportunity.
I wonder if we'd be having this discussion if instead of Hitler, John Gill had decided to model himself on Hirohito.
--Alex
P.S. Don't get the wrong idea, I'm not trying to defend Hitler or the Nazi party in any way, I'm just saying there's a little more to it than that....
I've always known the Nazis were bad guys but the book called
I Cannot Forgive, written by Rudolf Vrba, one of the few to have escaped from Auschwitz, really put a new perspective on it for me. But even so, the Nazi's didn't have monopoly on evil.
--AM