Natural gas producers are TODAY starting up miners to burn excess gas that would otherwise be flared. The concept has been productized - https://www.upstreamdata.ca/ - and is live.
We could as well put spare energy into manufacturing hydrogen fuel cells or running datacenters instead of blowing it on specially-shaped bits.
The solution is to add more and more renewables (and nuclear), not to ration electricity.
And endless growth is suicide. We could trade absurdist oversimplifications, but the reality is that we live on a finite planet and we are currently in vast ecological overshoot. We need to live within the carrying capacity of the actual world instead of an economics textbook and the stock market that's programmed us to think in quarters and single-year increments. It sounds a lot like we don't share the same urgency about climate change. I won't accuse you of being a denialist but I would encourage you to look at just how deep and fast we need to cut carbon emissions before we just splurge energy on speculation markets like Bitcoin.
Which could be used to replace non-renewable energy usage elsewhere.