"Correctly functioning components of a Byzantine fault tolerant system will be able to provide the system's service, assuming there are not too many faulty components."
In Bitcoin "too many faulty components" = majority of the CPU power.
We can't count the components because identities can be Sybil attacked.
But more saliently since I know your retort would be that hashrate is the count, you seem to be going in circles because you ignore what I already wrote:
In bitcoin, BGP is solved to within the stated tolerance of 51% byzantine faulty nodes.
Satoshi's PoW does not distinguish between faulty and non-faulty nodes.You guys are like a dog chasing its tail.