The world isnt binary. There are plenty of options in between those two. We could reduce our global emissions drastically without any noticeable difference in quality of life for most people. There is so much junk and single use stuff being produced that we could replace or simply stop producing. Banning all forms of commercial AI would hurt literally nobody except the idiots that decided to make it their career. If governments were serious about fighting climate change they would just take control of large parts of the industry and force them to stop making pointless shit that nobody actually needs.