the ones destroying the planet, its citizens & their trust into the financial system, are the central banks, that take all money sovereignitiy away from them and practice 'modern money theory' by printing cash to a level, that is insane.
Btw, making the rich even more wealthier, without them to take any risks.
central bank fans do not like btc,
as it is a community coin, that cannot be faked, and which is Totally decentralized.
Wasting energy?
There are many things that energy is being wasted for, indeed.
But when it comes to your money, and a way to save its value, energy that goes for btc transactions is nothing compared to real useless stuff.