Sure there is. We get a financial system that's independent of banks and governments. I don't care how much energy it consumes, that's a worthy goal.
Also, it's not even 1% of global energy consumption and even that calculation is based on rather questionable assumptions like "energy usage is proportional to bitcoin price". If you want to stop the burning of fossil fuels, what you need to do is advocate against trade with not only China but also all western countries whose luxurious lifestyles are literally dependent on such wasteful use of resources. Gotta level heavy economic sanctions against all the highly polluting developed nations until they put a stop to it.
I see it as exactly the opposite.
We live in a society, and as a society, we have agreed upon certain rules about how money is handled. If you want to opt out of those rules, then get out of our society.
Even the friends of mine who work in the banking industry will tell you that the current financial system is a rigged game that serves the elite and well-connected at the expense of ordinary people.
Reasonable people can disagree about the relative benefits and harms of cryptocurrency, but trying to make the case that the current financial system reflects some sort of happy societal consensus is roughly on par with being a lobbyist for big tobacco.
"Agreed upon" rules? This stuff is imposed on us.
It's a bunch of wealthy people burning absurd amounts of fossil fuels solely for the purpose of making themselves wealthier. There is no benefit to society from allowing this.