Whether LLM or non-LLM tech, the question of surveillance capitalism and how models need to be fed swaths of privacy-invading data (eg. self-driving cars filming everything all the time) is also a concern.
Overall, i think the ecological concern is still the biggest one. We are at the start of a major climate crisis, and any self-preserving measures were already hard fought by industry. I fear that any form of AI investment will lead (because it's already leading) to destroying any hope of saving an inhabitable planet.