
I like the bikelane analogy, actually.
It shows clearly that (a) yes you do need activism (like Critical Mass) and a few crazy ones that will bike regardless of the adverse conditions, (b) political will to shift towards bikelanes, (c ) wider adoption but also sustained activism to build better bikelanes (not painted gutters on the side of stroads, but protected lanes, connected with transit).
We definitely do not lack (a), but (c ) FOLLOWS (b). If you want to go from “just the crazies” to “everyone and their 5 year old”, systemic change needs to be backed by very concrete top-down action.
Without very meaningful (b), telling people to change their eating habits while stuff is otherwise the same is like telling people to take their kids to school on bikes next to crazy SUV traffic: it’s not happening.
Ever heard of Universalism? There is a whole church of them. They hang out with the Unitarians.