Your claim is that if a unanimous decision has been arrived at, it constitutes the will of the people. No one disputes this - the case where everyone agrees is trivial and uninteresting. It also does not describe the situation with Uber in Portland, Delhi, or anywhere else. I want Uber in Delhi, some politicians don't. Hence there is no consensus.

You either have a coherent definition of "will of the people" that goes beyond consensus, or you don't. If you do, give the definition.