Bringing up "We, the people" here is ridiculous, regardless of the "sense". We have zero power. Zero. Protests, revolts, riots ... all make no difference anymore and making a cross on a piece of paper once every couple years, aka voting, doesn't give us power. Anyone believing that is a fool.
It certainly allows us to avoid the worst of 2 evils in any case and nudge the ship of state away from obvious rocks where extremist positions cause politicians to lose elections. Furthermore many states have a means for individuals to directly make law on matters that directly concern enough sufficient voters.
