Those things produce joy, dry clothes, and steel. Crypto produces... scams? We're facing climate collapse and need to choose what we burn electricity on very very wisely.
US clothes dryers account for 60 billion kWh / year and by and large rely on direct heating elements. Switching to a heat pump design could apparently cut that in half: https://www.energystar.gov/ia/partners/pt_awards/SEDI_Fact_S...
It's the old saying about no silver bullets. There's a lot of small but meaningful low hanging fruit we could take advantage of that begins to add up in a big way.
On a yearly basis, (US) Christmas lights use more electricity than Montenegro or El Salvador.
It doesn't say anything about the worthiness of Christmas lights, but it makes them a much smaller gain if you eliminated them.