re: Its true of most of these whack job theories
The serious anti-tech myths, like the ones that caused the shutdown of nuclear power in the U.S. over the past thirty years, have a much bigger impact than crystals.
I don't believe that humans are the major cause of global warming, but that aside, there are many other very good reasons to get off the hydrocarbon wagon, and the political killing of the nuclear industry in the most advanced nation in the world did not help.
We could also discuss genetically engineered crops, irradiated foods, and other issues in this vein.