Definition of sport
noun
1an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment:
team sports such as soccer and rugby
[mass noun]:
I used to play a lot of sport
(as modifier sports)
a sports centre
(sports) British an occasion on which people compete in various athletic activities:
I won the 200 metres in the school sports
[mass noun, usually with adjective] success or pleasure derived from an activity such as hunting or fishing:
I have heard there is good sport to be had in Buttermere.
I don't see how someone can say what is and is not a "sport" without having performed the event at an elite level. Is the decision based on how much exertion is required? Such as hockey? Soccer? or like sailing or curling? Maybe it's technical skills that curling and sailing require? Vast knowledge is required on both these areas to be among the elite.
But if I look at the elite bass tourney fisherman I see similar traits. Countless hours of learning and practice, long hours on the water during the tournaments and prefishing, punishing days of rain, snow, wind and heat, the unpredictable elements of water, wind and fish. Does that make it a sport? To each their own.