Within this context the way to make Bitcoin more efficient is what I said in the OP:
You create other tokens that are better than Bitcoin, and Bitcoin drops in price.
We don't see that happening.
Whatever Bitcoin is doing the market has decided it's better than other options.
Making it more efficient means not using it.
Ahhhhhhhhhhhhhhhhhhhhhh!
Okay, that was the missing puzzle piece in my brain.
I wonder if Greenpeace had actually promoted another crypto instead of trying to take on Bitcoin directly - they might have had more success. Obviously Bitcoin is super entrenched, but I'm sure with enough normie support it could totally be dethroned... and then Greenpeace could then claim they directly they saved X amount of energy by measuring the before and after Bitcoin energy usage and the before and after of their supported crypto.
Appreciate you helping it click.
Yeah exactly you get it now.
Greenpeace wants Bitcoin's code to not exist.
This is impossible because it's open source.
That code is everywhere.
Begging for the code to not exist is childish and downright embarrassing.
They expect the code to fork and everyone to throw away the old code.
And they expect someone else to do all the work for them.
It's ridiculous.