"An entirely Americentric argument, spurred on by certain batty ideologues and infamous websites, claims that Adolf Hitler was not the far-right, anti-communist nationalist that everyone else remembers him to be, but rather an egalitarian socialist.[note 1] Much like the Discovery Institute and their assault on the theory of evolution, this attempts to evoke the association fallacy on anyone who practices left-wing politics and by that standard anyone who slightly leans to the left is an adherent of fascism ...

For this argument to be even close to being solvent ... good chunks of history need to be thrown out the window:

That the 96-member Social Democratic Party of Germany (SPD) was Hitler's main opposition in the Reichstag and the only political party that attempted to halt the laws that established him as dictator and brought down the Weimar Republic. In fact, all of the ideological predecessors of today's conservative and classically liberal parties voted unanimously for the law, while the SPD voted unanimously against despite the presence of SA guards in the building.[3][4] That the first political groups targeted during the Nazi ascendancy were pacifists, trade unionists and communists.[5][6] That Strasserism, the only strand of Nazism that could be referred to as "left-wing" (i.e. pro-working class in nature), were all killed off (with a handful of conservative dissidents) in what we all know as the Night of the Long Knives. About the only true socialists within the Nazi Party include the likes of Gregor and Otto Strasser for example[note 2]"