Even further, all too many conflate much of the above with mere "commerce," a word I've been trying to inject into this.
LITERALLY NO ONE DOES, or SHOULD, HAVE A PROBLEM WITH COMMERCE. People are always going to buy and sell things. All the other stuff is details on exactly what the rules about doing this should be.
AFAIK copyright applies even to certain materials that have not, and never will enter commerce. Of course there are certain non-commercial exceptions to US copyright law. (Note: this is not legal advice). IMO copyright law exceeds even the bounds of commerce, and thus cannot be simply called a "rule" of commerce.
LITERALLY NO ONE DOES, or SHOULD, HAVE A PROBLEM WITH COMMERCE. People are always going to buy and sell things. All the other stuff is details on exactly what the rules about doing this should be.