I think parts of it can be solved, by centralizing education. In my opinion Berlin (as well as Hamburg and Bremen) really does not need its own Kultusministeriu

I think parts of it can be solved, by centralizing education. In my opinion Berlin (as well as Hamburg and Bremen) really does not need its own Kultusministerium, money saved there can directly be sent to schools. Maybe also the funding for schools could come from federal sources to a higher degree, but I do not know the exact situation. Btw, the state you live in is called Baden-Württemberg.