So are you saying you think no legislation can help here, or do you think there is something that can enforce e2e but it just wouldn't get through in practice without dinging certain use cases?
If you think otherwise, please take my first point and run with it. I personally think the only way forward is to get more encrypted peer-talking traffic-indistinguishable apps into more people's day-to-day use. Then there's an actual market demand for real Internet access.