[goodpoint]

Given Wikipedia's definition Solarpunk fits squarely into the punk ethos:

The punk ethos is primarily made up of beliefs such as non-conformity, anti-authoritarianism, anti-fascism, anti-corporatism, a do-it-yourself ethic, anti-consumerist, anti-corporate greed, direct action and not "selling out".

[tomc1985]

Which is weird because that is absolutely not the vibe that I am getting every time it comes up

[goodpoint]

Comes up on which media? Very often mainstream media like hollywood or video game industry love to coopt the aesthetic of a movement and water down its message.

People often complain that the idea of cyberpunk is being turned from a protest against a dystopian future to a bland scifi style with fog and neon lights.

Instead, The Dispossessed by Ursula K. Le Guin is an excellent example of solarpunk.