Surely the question is not about what you absolutely need or not. You could strip you life back to only necessities. Some people might find that fulfilling, but I suspect many wouldn't.
I think the question is more of cost/benefit. Do the benefits of something sufficiently outweigh their costs.
As long as you're willing to accept the burdens of using FB as a panopticon. You get the blatant ads, the furtive ads, the manipulative filtering, the spam, the agit-prop. Ma Bell never barged in with a jingle when I used to call my grandmother. There is no cost/benefit analysis here. You can't cast this in a positive light relative to any previous means of social connection. It's absolute shit.
I've come to the conclusion that this round of social media is possibly the worst incarnation of technology in the past 30 years. Hopefully the next version is less shitty.
You seem to be assuming that such an analysis implies there there has to be substantial benefits, or something like that. (I'm not commenting here on whether they do or don't exist in the case of Facebook)
Surely the question is not about what you absolutely need or not. You could strip you life back to only necessities. Some people might find that fulfilling, but I suspect many wouldn't.
I think the question is more of cost/benefit. Do the benefits of something sufficiently outweigh their costs.