History does not repeat exactly. Weimar was too short lived and unstable. France went from tyranny to anarchy to terror to autocracy in 10 years. Rome, as the longest lasting and most extensive Republic before ours has traditionally been a better model than Ancient Greece. The people today, many of them, do not remember our history or care about our values. They want power, loot, and the most licentious behavior they can conceive of. A people like that do not deserve, and cannot retain, responsible government.
Those who do remember the basis of our system have an obligation to our progeny to preserve and restore it, however unlikely success may be.
The power seekers obviously know their history, so that we who would wish to prevent their success are obligated to know it too so we can pretty much accurately anticipate what they would do next.
That American Thinker article was posted here at FR a few day ago, here.