I know this is an older thread but the subject is intriguing. Having done both production carpentry and green building, my take is somewhat different. I don't think that mechanization is using SIP panels, although they have their place. Nor is it using insulated concrete forms another fine product, (too much embedded energy in concrete). To me it is using a machine to assist means a loader or dozer for site prep rather than a shovel, or a loader and conveyor to get earth to the upper courses or an earthship or rammed earth wall.
It means an air driven tamper rather than a hand held hammer to tamp the earth into tires. It is using a “pug mixer” to mix clay and aggregate for a rammed earth wall. A chain saw and a good splitter to prepare the wood for a cord wood wall seems a great idea.
Someday we may get back to a slower pace where the average person feels they have time for hand made one of a kind homes. I hope it is soon. However until then we are asking the rest of the world to leap a large canyon of thinking to get to our side. Showing the rest of the world a better way and how to use their tools to build it is akin to building a bridge over said canyon
I hope others will weigh in on this.