Giving examples of technologies that can also be considered "a waste of energy" is a valid argument. Why is using energy playing graphics intensive games with high-end graphics cards not considered a "waste of energy"? It's a value judgment that lacks perspective. Dismissing some technology for its energy usage without providing a better alternative with similar or better properties is nescient.

Some people at least try to provide "alternatives", but they don't have better properties or completely ignore what the technology was even trying to accomplish.