Only with humans, it's admittedly way more fun. :)
The steering problem is worst when you go in without any sort of position. If you sit down and say "what should I write about X" then yeah, you're risking ending up thinking whatever the model thinks. But if you sit down with even a half-formed argument and conviction and say "here's what I think, build on it and poke holes in it," the dynamic is completely different. You're still driving. You still need to maintain meta-awareness of how your thinking might be shifting in response to the AI, but you remain in control.
With that I think the editor vs thinking tool framing is a false binary. The best use I've found is somewhere in between — more adversarial than an editor, less open-ended than brainstorming. Alternating between convergent building together and structured disagreement, basically.
Most people in this thread are talking about the output stage. You know: polish my text, fix my grammar, generate my message. That's where you lose your voice. But the blank page problem borski describes isn't really a writing problem, it's a thinking problem. Once you know what you want to say, saying it tends to be the easy part for us writers (sometimes lol!).
The most useful thing I've found is using AI to figure out what I actually think, using it for rubber ducking, exploring angles, stress-testing arguments, and then closing the tab and writing it myself. You get the cognitive help without losing the (or your) soul. I've output more writing in my own genuine voice in the last year than I did in several years prior, and it's because I use AI for clarity instead of replacing my output.