Both are true, even if they were aligned they still wouldn’t be doing what they do for reasons analogous to why people would. You’re probably right that we can’t fully understand how they function, and that will get harder, but it’s possible to be less wrong, such as by not anthropomorphising them.
Maybe one day we will build systems much more like us, but this is not that day, and if so it’s a long way off IMHO.
Anthropomorphizing helps to create a lower bound for damage. If you can imagine a bad person doing it, AI will be at least that bad, unless proven otherwise. I think referring to AI as a tool obscures that, because we are not used to tools (especially the ones we use daily) taking catastrophic actions.
Example: would a sufficiently motivated human break into a website to steal something they want? Yes, obviously, happens all the time. Ok, you should expect AIs to do that.
Example: would a sufficiently motivated nail-gun steal nails from the local hardware store to finish the job? Uh…that’s not even coherent.
Anthropomorphizing helps people get over the conceptual barrier. It’s wrong, but it’s usefully wrong; “it’s just a tool” is not.
Once you’re over the barrier, anthropomorphizing starts to become dangerously wrong: “I talked to Claude, Claude’s cool, Claude would never go and hack the website.”—-bzzt, wrong, your intuition failed you. But the solution is not to fall back on the tool framing; that one is still wrong.