That IS the "logic." The Constitution is a set of rules that strictly defines what the government is and is not allowed to do. The overly broad interpretation of the ICC allows the federal government to intervene in areas of life where the Consitution doesn't allow the federal government to do so. It's sort of like "a living Constitution," where the Constitution means what ever the person interpreting it wants it to mean: And they've got the deadly force to back up that meaning.
Mark
Well, I don't see where the Commerce Clause says, "Congress may regulate commerce among the several states except in the following areas:".