Explain more about Eisner.I''ll check the links, too.
Well Eisner is what you call a charismatic. With him at it's helm, the USPD overthrew the highly popular House of Wittelsbach and established Bavaria as a Republic. However, he planned on resigning when the democratic process ousted him. On the day he went to resign, he was assassinated. When Eisner was assassinated, Bavaria got pretty lawless, and Eisner's more radical supporters started the Bavarian Soviet Republic, which allowed for the Freikorps to become established in Bavaria. After the revolt was put down, largely thanks to aforementioned Freikorps. Afterwards, the engrained support for the Freikorps and the far right lead to the rise of Gustav Ritter von Kahr and the fostering of far right movements banned throughout Germany after the Kapp Putsch.
Have Eisner survive, and the Bavarian Free State, in all likeliness, will end up without becoming a haven for right wing groups. Overall, saving Eisner, might save Weimar Germany. Making the Bavarian Peoples Party, in collusion with the DNVP the most viable right wing political force.