And I still have yet to understand why should the rest of society who hasn't bought into Bitcoin shoulder higher energy costs because Bitcoin are driving up demand?
This could be said about any commodity. Like because of gold hoarding banks/individuals driving up the demand rest of the society has to pay high price of gold for jewelry.
You're right, that's a moot point: it all boils down to unnecessarily, unreasonably transferring wealth from later adopters to earlier supporters (left holding the bag) in what amounts to very unsophisticated "investing" - whereby buying a stock of a company or say gold is buying for something very specific, contextualized, with annual reports and laws in place to attempt to lead to integrity within those organizations; not an apple to apple comparison that people consistently try to make.