Hell the Poland Hitler invaded would be considered a fascist regime

It was literally a fascist regime at the time.

Edit: I checked my sources and see Wikipedia describes the pre-war Polish government as a "dictatorship without a dictator."

Wikipedia

From 1937 the colonels' new political front would be the Camp of National Unity (OZON). In that last period, the Polish government—a "dictatorship without a dictator"—in order to bolster its popular support, paradoxically adopted some of the nationalistic, anti-minority policies that had been opposed by Piłsudski and advocated by his most vocal adversaries, the National Democrats.

I have a feeling that "anti-minority policies" is a bit of a euphemism.