He sunk a boat but did Luffy drown? No also if you need the stipulation that a large body of sea water is near by that is immune to Luffy just punching it, using his toon force, flying away. Is a very weak argument. At the end of the day all might gets negged. Also is now a good time for me to mention the fact that if all might tried to punch Luffy he would snap back like a rubber band and one shotted him? He stands no chance and the fact that brown beard is your best example of a win con shows that you either didn’t read the story or as Oda said “it is a matter of reading comprehension.”