Earlier quoted context omitted.
You'd have to exert the same amount of energy to clone Bitcoin ... The cloner would have to exert the same energy to mining that Satoshi Nakamoto did/does --- zero. Others will do this for you. But thanks for pointing out the absurdity/weakness of Bitcoin and one of the reasons why it fails as a currency. You do know there are other options for cloning.
That would be true if you could time travel to 2008. In 2022 you have to compete with what already exists, not with how what already exists was created. There are no other options for cloning a PoW blockchain. You would not easily get "others to do this for you" to the same degree that bitcoin already has. I generally agree with you though that cloning a PoS blockchain is easy in this regard, those ones also are prot…
It's more true in 2022, no time travel required.
Unlike 2008, the awareness and the operations needed to mine a bitcoin clone are already in place, fully setup and operational, running 24/7. Just offer rewards like bitcoin did back in 2008 and the existing miners will be all over it like white on rice.
There is very little additional expense to mining a clone alongside bitcoin. The equipment will be running either way.