Because it's very far from being Tobacco.

Tobacco has zero utilities, meanwhile Facebook is heavily used for connecting families and sharing small life events.

Saying it is the same as Tobacco isn't useful. It's an exaggeration, which makes it hard to take the argument seriously.

Millions of people find Tobacco a very pleasurable experience. Not just addicted cigarette smokers. It increases social lubricity, brings people together at parties... It helps connect new friends together and can strengthen existing bonds. It's not uncommon to celebrate events with a cigar anywhere in the world.

I don't see social media being a whole lot more useful. Cool you can share some photos, and organize some events, but you can do that without Facebook and all the unnecessary shit that goes along with it.

With that kind of thinking, meditation is like a cigarette. Running is like a cigarette. Drinking water is like a cigarette. Cue the original point of how unhelpful the analogy is.