Does that mean anyone would conclude that all fiction elicits empathy? Or that fiction never elicits empathy? Or any other similar extreme conclusion? Wouldn't

Does that mean anyone would conclude that all fiction elicits empathy? Or that fiction never elicits empathy? Or any other similar extreme conclusion? Wouldn't we obviously say that there exist types of (fictional work, reader) pairings that yield sympathetic outcomes and other (fictional work, reader) pairings that yield sadistic / non-empathic outcomes? In other words, from what source does there drive any kind of authoritative argument that generic reading of fiction either always or generally leads to increases in measures of empathy? A study that measures fiction reading would surely not be adequate, unless it controlled for all possible sources of variation between dispositions of people and dispositions of fictional works, which is ludicrous in principle.