A lot of this thievery is written by our elected representatives staff who, in turn, are heavily influenced (AKA bribed) by Lobbyists and other influential constituencies.
It wouldn't surprise me at all if much of what has been and is voted on is not read by anyone other than the Staffers who actually compose the Bill.
All of these theatrics are necessary due to the extreme complexity of the laws. I'm not defending it. It makes it possible for the intent of the Constitution to be subverted, e.g. spending bills don't have to really originate in the House, secret legislation, things which resemble bills of attainder, delegation of power, etc. The Supreme Court has have something to work with, y'know?
Ultimately this is something to take up with your CongressPerson. Voting for non-existent bills is really a serious lapse of judgment. We elected a representative, not a rubber stamp for oligarchy.