They have outlawed the Muslim Brotherhood in Egypt, but Wahabbis are still allowed - Egypt gets big subsidies from the Saudis, whom the Muslim Brotherhood also wants to conquer. Only the Qataris and Turks (and arguably the US) support the Muslim Brotherhood.
It is interesting that you mention the German approach, because the modern Muslim Brotherhood is to some degree a product of the Nazi Party.
Formed initially seven years after the fall of the Ottoman Islamic Caliphate after WW1, the Brotherhood were essentially an ineffective grievance group, until the Nazi’s adopted them as a regional surrogate and trained them in spycraft and military operations.