We've been over this, it's called "consent of the governed", you refuse to acknowledge Rousseau's arguments put forth regarding this even though it has been well established for more than 2 centuries. The government has no authority unless we give it to them through consent.
If you expect a government official to come door to door asking everyone "Do you consent to _____ being discussed in congress this week?", then you're simply delusional. An efficient government cannot operate in that way, they knew that in the formation of the country, that's why we hold federal elections to elect people to represent us in government. You give your consent in the hopes that your elected representative will best serve your interests, sometimes people feel like they do, sometimes people feel like they don't, but that's how the system works in a representative republic. If you want direct democracy, you will need to explain how that would work effectively and be as efficient or more efficient than the system we have now.