One could certainly stop stop Facebook, WhatsApp, Twitter, Snapchat and so on. But you'd have to consider what the impact is; maybe you'll become more distant from friends and family. Maybe you'll miss out on events. These things are pretty important, for obvious reasons, and it's a shallow argument that everybody can simply walk away "instantly with no ill effects".
It's up to the individual to decide if the trade off is worth it. Clearly, for some, it is.
I certainly made no proclamation as to how anyone should live, which you seem to have mistakenly inferred. I suspect that level of unprovoked defensiveness to have an interesting underlying cause.
Comparing Facebook to alcohol/drug abuse is like comparing piracy to theft - it misrepresents both issues while making it more difficult to discuss their impact and ways to solve them.
