How about he does exactly the same thing, with exactly the same outcome in the real world, just without making any NFTs, burning any coal, or shilling any get rich quick pyramid schemes?
What tangible difference would there be?
None whatsoever.
...Except for no bullshit, no proof of wasted energy, no precious GPUs buried in landfills, no contribution to climate change, no carcinogenic smoke, no lung disease, no cancer, etc...
Did you know: rocks used to be perfectly good companions and construction materials aeons before and decades after the Pet Rock craze came and went.
The cardboard box and the $4 price tag were just a gimmick. So are NFTs.
And any person receiving some random amount of money donation from Facebook in exchange for NOT making an NFT probably cares.
Or is your whole point "who cares about the environment"?