Bitcoin uses a less than .01% of the energy used by banks and payment processors and the people and systems they employ.
This has been discussed numerous times. Its a massive gain in energy efficiency, not a loss. Reconsider all your assumptions.
And use the search function first. This has been discussed to death here.
What are you talking about?
You state nothing new and I don't disagree with what you just said.
It is for this reason Bitcoin will take over many markets replacing endless amounts of useless repetitive jobs today.