> The era of collapse fiction like cyberpunk

Punk was never about collapse, you're confusing that with post-apo.

Also I'm unconvinced about the political potential of solar utopias: they're usually centered on art, and completely avoid the how. So many of them draw nice-looking landscapes that make no sense: glass and steel have to come from somewhere, urban centers can't exist without a periphery, etc. All the issues are carefully avoided and labeled as "negative thinking, which [authors] rebel against".