I'm gen X too and I'm fairly sure our parents came to the same conclusion, amongst all the others too.. Also, when we were kids, we were the ones saying we'll have flying cars and moon-bases, while our parents did something we will never do, actual, productive work. :)

Is this comment a joke, or it's the perception that some of my generational peers have : that dark thoughts, melancholy, depression are embodied only by gen x, and only gen x truly know them, to the point that no creative endeavor could reflect those states?

Please tell me it's the first, because I'm afraid of breaking my spine while folding in cringe.

haha yeah, nobody before $my_generation had their own internal world