Putting to one side if the attack would work, or have perverse outcomes, I do have concerns about the ludicrous amount of dirty energy used to mine coins.
not sure what you mean to be honest? "to mine state" ?
proof of stake just means the rich get to call the shots, at no expense to them. No disincentive to cheat. All previous attempts, and there were many - have failed to date.
Miners in PoW have to risk incredible amount of capital, and cheating is strongly disincentivized by that.
"mine state" -Bitcoin miners are hunting complex bit patterns from functions, by exhaustive search in a GPU or CPU farm. They are converting time and electricity into unique solutions to a problem, which then provides a mechanism to seal the chain in cryptographic signature. The "state" they create is the block they "mine".
The point at hand, is that PoW incurs energy costs which drive to cheapest which is to ignore externalities and burn brown coal in china. the problem is the ignored externalities: the CO2 pollution.
You're arguing "its the same" about the end outcome of the chain as a thing in itself. The point of my comment and I believe the article, is that PoW incurs a huge energy cost which is pointless: its make-work. It does not relate to the value of the chain.
I ask if PoS is "the same" IN THIS REGARD. Not in terms of what the end outcome as a chain is: if the energy inputs to achieve PoS are the same as PoW.
Proof of stake would terminate that problem?