Dude. Do you think that “international waters/airspace” means you can just anything? Consider airlines. What happens if you suddenly drop trou and shat in the aisles? You will be restrained and arrested the moment you land. Similarly, people on ships are bound by the laws their ship is flagged with. In addition, insurance companies won’t insure your vessel if you decide to not obey any laws. That alone can destroy your business venture.