Citizens United has nothing to do with it. The fact is that the federal beuracracy rights parts of bills that are passed by a congress that never bothers to read them. In other words, they are essentially governing themselves with no oversight from legislatures that are far more interested in Dominican prostitutes than actually governing.
Add in the career beuracrats, the executives, sit in their jobs for years, essentially untouchable and you have a recipe for the rule of a thousand little tyrants. You wind up with a government as malformed and as non-responsive as the one we have today.