As anyone who likes Deleuze and Guattari should know, what they transmit of Theweleit's Crowds and Power is that the initial accurate reaction, as capitalism metastasized into nazism in the 1930s, is "I can't believe they're getting away with it." Jews were shocked. Non-Jews were shocked.
There has been an outrageous, obscene rip in social space.
Don't make the paralysis worse by making anyone feel guilty. The point is to experience the shock and then start to move.