Most people's lives suck and the only thing that they have going for them is consumerism. So it's reasonable that they are unwilling to give up consumerism.
Therefore, the hard part is changing the structure of society so that people's lives don't suck.
In some cases micro-gassifier rocket heater/stoves (just because you can make one out of mud doesn't mean it's not high technology!) & coppicing and pollarding will make more sense. In other cases clean atomic power and induction heaters/stoves will be the way to go.
Some times willow bark tea, and sometimes morphine.
I mean, we will eventually live in harmony with Nature one way or another. Shall we cooperate consciously in the process of life and evolution, or let everything crash and burn and hope the survivors do better next time?
Therefore, the hard part is changing the structure of society so that people's lives don't suck.