Its money, and money is a special kind of commodity. Bitcoin "price" goes up and down relative to other types of money, but fiat is inflationary by design. Fiat money is created, loaned and interest charged, the money supply needs to expand to encompass that interest or there is default. Under bitcoin, money is created and paid for in energy (via mining rigs) with a supply where the increase exponentially declines to reach a final supply of 21 million.
Nowt wrong with inflation in any case. Money circulates. The value represented is eroded over time if it doesn't circulate. That's not a bad thing.
Consumption is intrinsic to our current use of money, people must consume more and more to keep the show on the road, but we need to cut consumption, that means demonitarising our society, and where the energy expended on growing a tomato is greater than the energy expended to mine a tomato;s worth of bitcoin, the focus of energy will shift.