Technology isn't evil in and of itself. There are green technologies, but because they aren't lucrative for big oil, I wonder if in a capitalist system underpinned by fossil fuels, they'll ever take off in a big way.
Yeah, I'm no fan of Luddite living, and don't think it's necessary, but perhaps many of these off the grid folk find it to be a challenge they enjoy. Not me. I like flush toilets, by golly!