Not going to rehash the whole discussion but according to the ran there is no more dina dmalchusa in the USA because you would need a melech. Another issue is that most shitos (outside of Rav Pam) hold that if the government does not enforce the law – and they do not in this type of situation dina dmalchusa does not apply (similar example is HUD which a lot of people take advantage of). And I still havent seen a good mkor for intellectual property outside of seforim (which for obvious reasons does not count).
@YW Moderator-42 I am quite curious to know what Rav Belsky would say to your scenario as he clearly seems to hold the problem is maasig gvul.