Strictly based upon definitions
So basically for an activity to be a sport it requires physical exertion. Now that is where things get muddy. You can say it requires athleticism. But then you can say baseball you don't really need to be super athletic. Even with football you can get away with not being super athletic if you're a lineman or a nose. So if you're going to simply say it requires your body doing something the list of things that can be sports opens up immensely.an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.
I think most people would consider bocci a game not a sport but I think the hardest one to define to me is golf. I'd say since Tiger revolutionized the game it became a full fledged sport where athleticism dictated ability. But at the same time you can just be extremely honed with your movements and be extremely good at it without ever seeing a treadmill or a weight in your life.
But honestly its just arguing semantics and I don't really engage in arguments like that. Someone can define it one way and I can define it another. No big loss on either side.