If you think skiing and cooking have as much of a negative impact as social media as on entire generation of kids I doubt we'll find common ground to go further, usually it requires a bit of good faith
This is the second philopsiphical point of economics. Everything is a choice between costs.
Im curious how else you would put it?
>Like to ski? Your injuries have a societal cost.
>Like to cook? Your inefficient use of energy costs society.
This assumes that fairly standard activities are imposing the societal cost you are attributing to them. For most individuals who perform these activities, they are not producing an outsized societal cost, which is the delineation the parent comment was making. The parent comment used an example of something that from their point of view has a negative societal cost in the base case. Your examples are not similar as they are not referring to the base case of simply performing the activities, but only to the relatively uncommon tail end outcomes.
Like to ski? Your injuries have a societal cost.
Like to cook? Your inefficient use of energy costs society.
If you can use an argument for anything it’s not a very convincing argument.