I was reading a bit on Gustav Stresemann and how he dealt rather lightly with the conspirators of the Beer Hall Putsch. And then I thought to myself, "wouldn't it have been nice if he'd lined the bastards up against a wall and shot the lot of them?"
I'm assuming the charge would be treason, but these are details.
Can he, or someone else, do it? What effects does it have?
The Nazis die out, some other non-racist far right movement takes their place, Germany becomes a conservative-nationalist dictatorship in the 1930s, does its Rhineland-Austria-Sudetenland number on schedule, doesn't invade rump Czechia, bargains a Munich II or fights a limited German-Polish war to recover the 1914 territories, WWII as we know it doesn't happen and millions of surviving Jews, Roma, Slavs, and homosexuals feel an inexplicable shiver when they look at a venerable solar symbol.
Edit: Stalin may or may not unleash *a* WWII in the mid-1940s when he mistakenly feels strong enough to pick a fight with capitalist Europe or his paranoid self thinks a pre-emptive attack is a good idea, Japan eventually oversteps itself, picks a fight with USA/UK/USSR and gets curbstomped, HUGE cultural butterflies from lack of Holocaust, such as racism, colonialism, and militarism (but likely not sexism nor Victorian sexual mores) remaining respectable ideas longer, fascism gradually dies a quiet death as the old guard leaders die out and reformist successors take over, Communism may become the pariah ideology IF anti-Soviet WWII occurs and Stalinist atrocities are discovered, desgregation may or may not be slightly delayed, decolonization almost surely is delayed substantially, eugenics remain a respectable idea so we might have working genetic engineering treatments as of now. However, if anti-Soviet WWII is butterflied away as well, we might face a technological delay of up to a decade in many fields. Possibly the GMD gets more support against the Chinese Communists and south China or even all China remains capitalist develops decades earlier. Europe remains all capitalist, and southern and eastern Europe industrialize faster, so is more affluent, the EU may or may not happen (it does if Soviet Russia is felt as a menace, with or without a WWII against it). If WWII does not take place, the development of American hegemony is limited to Asia and globally the European powers share the leadership (UK, France, Germany, Italy), possibly soon joined by a fast-growing China. More prosperous Europe and China, and possibly technological delay, means more global warming.