"Only when those deemed as enemies of the constitution become organized in such a way that they pose a threat to democracy may the state intervene. In this case, associations and parties may also be banned. Known as 'defensive' democracy, the objective is to prevent Germany from becoming a dictatorship again, as it was during the Nazi era."
https://www.dw.com/en/why-hate-speech-is-punishable-by-law-in-germany/a-71700225