It is not right for the German government to use a Trojan horse spyware to spy on their citizens because German citizens and all human beings should have a right to privacy, as Americans do due to a combination of clauses in the American Constitution. This Trojan horse spyware would violate this universal right to privacy.
Spying should only be used in extreme circumstances, such as when there is compelling evidence that someone is getting ready to commit a crime that would cause mass destruction. People who have no criminal record or a record of only petty crimes do not need to be under any kind of surveillance.
No, I do not believe Germany should spy on its citizens using Trojan horse spyware. This technique creates a feeling of mistrust between the government and the citizens, which creates tension that is harmful to society as a whole. Even if the government intends to only use the spyware on suspicious citizens, it could eventually spill over and be used on law-abiding citizens.
No, it's unacceptable for the German government to spy on citizens using Trojan horse spyware. Free societies must err on the side of freedom when it comes to the balance between national security and liberty. If they fail to do so they can no longer be considered free societies. Germany in particular has a totalitarian past and needs to steer well clear of any appearance of government intrusion.