I did not believe in Intelectual Property before. I'm not going to start believing now.
The same I think that corporations having a hold on media is bad for humandkind I think that small artists should not have a "not usable by AI"hold on what they post. Sharing knowledge is good for humanity. Limitate who can have access or how they can use that knowledge or culture is bad.
The dead of internet have nothing to do with AI and all to do with leaving internet in hands of a couple big corporations.
As for emissions.. are insignificant relative to other sources of CO2 emissions. Do you happen to eat meat, travel abroad for tourism, watch sports, take you car to work, buy products made overseas? Those are much bigger sources of CO2.