Solarpunk is just "what if we did futurism with lots of trees or literally just solar panels?"

Futurism is sci-fi (sometimes a little fantasy) and can therefore mesh with any political tendency except maybe the most purist of reactionaries / primitivists.

I'm not sure how you'd even know the people in the place built it. Let's say you have a big shiny complex full of trees and people. If the people built it, do they have to wear overalls and safety helmets or can they wear casual clothes? How can you tell that a person in an image built a structure unless they're actively building it or just finished building it?