TIL in 1933 the Wall Street Journal had a headline which read "Berlin Views Hitler Calmly: Rise in stocks reflects confidence he will not disrupt nation's affairs"
Events always seem more obvious and predictable after they have already taken place.
Here's a copy and paste from the 1933 article:
Rise in Stocks Reflects Confidence He Will Not Disrupt Nation's Affairs
Berlin is settling down to pass judgment on political developments. Politicians, economists and bankers declare there is usually wide discrepancy between the speeches of opposition politicians and the actions of the group when it gains power.
Consequently, it is not believed that Hitler will accomplish a change in the constitution or that [Reich Minister of Economics Alfred] Hugenberg will bring about a general reduction of interest rates. The government wants to obtain an adjournment of the Reichstag for several months, but it is questionable whether the Centre [Party] will approve of such action.
The SDP purged its ranks of Communists to appease Hindenburg's State Police. You can't side with a party that's trying to rat you out to the cops and get you killed.
Which, again, brings us to the conservatives who held power by playing sides off each other until they misplayed their hands.
The path to fascism was paved back in 1919, when the original Communists were rounded up and executed by the conservatives.
the Communists could have chosen NOT to side with the Fascists
Why do you keep deflecting blame from the Weimer president and head of the military police? I almost question whether you have a problem with the Fascists at all.