That's exactly why orgs like EFF exist. Most laws also aren't passed because of overwhelming consumer feedback. It's lobbied by special interests. Which sadly took a negative connotation over the last few decades, but lobbies can be for the people too.
This is not an easy problem to solve. Certainly I want more things at the federal level than the authors of the constitution envisioned (currency, international diplomacy, military, etc.): some things really need to be done at the national level (like environmental regulation).
Anyway. Sure, those figures may be true for the US Congress (or not, I haven't verified), but I bet you those figures aren't even close to true for town and city councils and county government. And perhaps not even state government as well.