So, the federal government does not have the authority to do whatever is supported by the democratically expressed will of the people. It only has the authority to do those things the Constitution gives it the authority to do, with the caveat that even there it only has the authority to do them according to the democratically expressed will of the people.
In the case of the ACA, the bill passed out of the Senate contained NONE of the language which was in the bill passed out of the House which it supposedly amended...not only that but it did not even contain any language relating to what the House bill was about.
You are correct that I do not like how our system works...and neither would the men who wrote the Constitution, nor would the men who ratified the Constitution in the 13 states. If they imagined that it would be interpreted as it currently is, they would not have ratified it.
Of course, it would be even easier if the people in Congress actually took their oath of office seriously to support and defend the Constitution.
Personally, I would like to see every bill contain a reference to where in the Constitution Congress is given the authority to enact the legislation in question.
The problem comes from the fact that the US Senate is elected,
No, the problem comes from the fact that the U.S. government no longer considers itself bound to follow the Constitution. The rest of your post indicates what causes this problem. The legitimacy of the various parts of the U.S. government to do ANYTHING is supposed to come from the U.S. Constitution, not from "democratic legitimacy". The various states yielded their sovereignty to the federal government under the understanding that the federal government would be constrained by the Constitution, not free to do anything which was not opposed by the democratically expressed will of the people..
I think what you meant is that the judicial system is no longer working as ORIGINALLY designed, which is entirely correct. Now to some degree that was necessary. We, as a people, no longer desire some of the results which the original system was designed to produce (such as protecting slavery). However, we have allowed a class of people (lawyers) to change the system so as to favor members of that class, which was not necessary and is contrary to the interests of everyone else.
It would travel to your destination without ever having to stop.
Assuming of course that your destination is somewhere along where those rails run and that no one else is on those same rails and stopping between you and your destination,