While you are right with the conclusion that it's not going to happen, you are wrong about who made the proposal. I suppose by "minority oppositional party" you

While you are right with the conclusion that it's not going to happen, you are wrong about who made the proposal. I suppose by "minority oppositional party" you mean the german green party (btw: more than 20% in recent polls) had nothing to do with it. The proposal actually came from the "Verkehrskommission" (English: transport commission), which is a commission of the federal government.