Do you see fewer humans working ? Fewer humans taking their cars to do groceries, fewer humans going to school, fewer humans cooling down their houses ? All AI does is potentially make said humans jobless, with a job here and there created with a bullshit title like prompt engineer. The energy you're "saving" is absolutely nothing. When you pay someone to do data entry, the majority of their energy expenditure isn't the computer they're working on, it's the transportation systems they use, the food they eat, etc. These never go away. Well, not unless you kill said person. The current AI trend is purely additional energy consumption, without any tangible benefits.

Capitalism as a system is fundamentally incapable of functioning without continously running forward, and stopping means the system collapses. It needs consumption, it needs perpetually renewing debt, perpetually working humans. It's a death cult.