Germany has a total fertility rate of 1.3 --- i.e. guaranteed demographic collapse --- and with its median female age of 44, it can only get worse.
If you think "successful" sex-ed is something consonant with the sabotage of marital fertility and the un-making of families, nations and civilizations (which are all indicated by population implosion), fine, and welcome to it.
Auf Wiedersehen Deutschland: You say goodbye I say hello. ;-) (Do you remember the Beatles-song?)
It is nothing new that Germany -and the rest of Europe- is in a fundamental change. If we talk about birth-rates the trend is irreversible. This will cause many problems in the future but is also a real chance since Europe is still hopelessly overpopulated.
And you included me in your post because?