I think that's a bit naive... using network theory, the more people that use something, the more it will be used. If someone texts you, you're probably going to text back. If many of your friends send texts, you're probably going to be a texter... sure, texting is not a neccessity, but it's a high probability... an inevitable expensive upsell.

There is only power in Gahndi'esque non-participation if it is adopted in critical mass levels. This level is difficult to hit if there is a continual friend-backed participation push. Even if there is mass attempted vestigilization via concerted non-participation, there's still enough idiots who don't care. This, compounded with familiarity means there's no great escape from expensive texts.