Sorry, but there's a third option: reduce production and consumption (no quick fashion, more durable products, right to repair, penalty on constant ads, etc.), reduce needless transport (e.g. work from home, cut down tourism industry, cut down useless imports/exports, etc.), scale down population growth (this is already happening), and so on.

Unless we curb the endless growth mindset, the world will become a dumpster full of garbage anyway, regardless of the energy source.

And cheapo power will only encourage "more of the same".