The whole idea was to make the argument moronic to show the extreme end of the spectrum. Somewhere you have to draw the line, when does the boat become a weapon

The whole idea was to make the argument moronic to show the extreme end of the spectrum. Somewhere you have to draw the line, when does the boat become a weapon? Some weapons are also legal to posses, but others aren't, where do you draw that line? Is a kitchen knife a weapon? A sword? Are you allowed to export a sword? a gun? a RPG? armored personnel transport? A tank? A Helicopter? A jet fighter? Cryptography? Radars? Regarding the court it's definitely not expressing my opinion, more like extra spices on the rant :) In case that wasn't obvious.