> The people buying Bitcoin don't need to be aware that it costs 6 GW of power, any more than they need to be aware of the electricity costs associated with the manufacture of plastic, electronics, or other goods and services.

But people do need to be aware of the environmental costs of such things, because society does not account for negative externalities.

> regulate the coal plants, not Bitcoin. Regulation of electricity will increase the cost of electricity

What if society actually thinks it's reasonable to discriminate on energy use? What if we want to provide cheap-ish energy for end-consumers, for essential services like the medical sector, but not for cryptocurrencies?

Seems like a fine choice for a society to make.