It's never a binary thing. "Is using energy good or bad?" is a stupid question which can only provide stupid answers. It has to be placed in the context of whether it's proportionate to benefit.
Things which burn a lot of energy for little benefit - and in the case of AI, often negative benefit - end up more towards the "bad".
The emissions per kWh of energy used in providing internet downloads probably is similar to that per kWh of energy used for washing clothes.
Yes, and it's none of your business how other people spend their electricity.