Someone who thinks these things are a gimmick, and a harmful gimmick at that, is right to express an opinion about the value these devices add. The same way I'd encourage a friend to quit chain smoking tobacco cigarettes, and not visit his house with my family if it were full of secondhand smoke.
Relevant xkcd: https://xkcd.com/1807/
At some point, I would think he would say it’s none of your business.
This will create a lot less noise, which drowns out any meaningful discussion.
For instance, saying that I use a piece of technology because it’s like a recreational drug is not very convincing.
Addressing the line between having an always listening smartphone with a gps, would be a great place to start.
Also, obligatory http://www.paulgraham.com/say.html
I realize we are quibbling the definition of "nutbar", but my line is drawn at the extreme end, not the moderate end. It's one thing to advocate Haskell as the perfect language for building an OS (crazy talk, but I support it) and quite another to advocate violent uprising against minorities in society (a la StormFront). I hope we can agree that there's a distinction at play here.