alt Hacker NewsI'm not sure if it's naiveté, it's probably more that we are all complacent. If all Facebook/Instagram users (and perhaps, even if only those with children), stopped using, that would be an actual stick, wouldn't it.. But we don't (I'm not excluding myself).
Deeper than that, it might be food for thought if someone can't stop doom scrolling. It does not matter the platform, if people are "addicted" to "bad news" it might be the person at the corner of the street ("the end is nigh! repent!"), the pharmacy next block or something else.
I personally stopped using Facebook because it was annoying me with useless doom and aggressive comments of people on stupid topics. If it would have showed me only cat pictures (like Instagrams does) or reasonable stuff (news, etc.) I would have continued using it.