How have you managed to twist it into a fallacy? You shouldn't make these claims, because if anything you used a hasty generalization or fallacy of composition.

Not all cryptocurrencies are bitcoin nor do they work the same at all. For example, many don't even use "mining", which is the source of bitcoin's outlandish energy waste. I have no interest in defending cryptocurrencies, but at least don't do so in defiance of common sense.