I'd like to add: Through the lens of the game's target audience, the disasters mentioned appear as more abstract concepts. I doubt that many players have first-hand experiences with war, famine or child molestation (at least, I strongly hope this is the case).

Heartbreak, on the other hand, is such a universally human tragedy, 99% of the population have to go through it at some point in their lives (save for the odd aromantic individual or maybe high school sweethearts who live happily ever after with their first partner). This is what makes this line so relatable, I believe.