I think solarpunk while it looks nice is idealistic and does not have a much intellectual depth to it. For example its art pieces do not convey any information about the social relations which makes it very hard to imagine how we can have conditions remotely close to what is being depicted because the works feel more like science fantasy than anything. But equating it with fascist futurism is hasty. I can't explain why because I know nothing about fascist futurism tendencies. But I don't think just because solarpunk skip labour and jumps straight to its fruits makes it fascist. It just makes it a bit silly.