The point here isn't that ANY government can't listen on. That's a noble goal but so not achievable in a short period of time for everyone. The goal here is that German citizen isn't spied on by the US government because the US government has shown utter lack of respect to rights of anyone who isn't a US citizen. The point here is that if your own democratic government is spying on you, you have some (albeit limited) degree of control (elections) and rights (because you're voter, so they care about you). When a foreign government spies on you, you have almost zero control.