Animal farming is a far greater user of resources by far and is a top 3 contributor to breaching every planetary boundary.
It also has an easily replaceable alternative that would reduce farmland use by 50% , massively reduce water use, eliminate one of the top contributor to climate change, and at little to no cost.
A glass of cow’s milk costs weeks worth of the average AI user’s resource usage.
So you’re right that we have far better options to tackle before we even start worrying about AI.
AI does have a particularly high local impact, due to concentrating so much of the world’s AI energy use into the land on which the data center is located, so that is a real issue to be dealt with, but that’s largely a regulatory and management issue.