[jrmg]

The "rest of us" don't pay for the electricity use. The ETH miners are paying for it directly. And creators and buyers are paying for it indirectly through ETH usage. It isn't an externality. That's like saying the physical art world shouldn't exist because it uses physical real estate, electricity, and raw materials to be made on -- and the rest of us pay for those things.

Negative environmental consequences with costs imposed upon society are literally externalities. All the things you list are textbook examples.