Ultimately it is always human that does it, unless you say machine has free will.
In this case there is a tool that can make human more efficient. But there are other tools as well, which I think are more interesting.
Imagine if human intelligence is like physical ability to move. AI tools are like personal mobility chairs. Over time the ability to move only atrophies. But other tools are like bicycles and skateboards. They help move faster while still requiring exercise.
You say in your original comment "do you want a machine to solve a problem?" but this is attribution error. A tool never solves the problem. It can only help you, an intelligent being, solve the problem.
Whoever puts forward the problem can be credited with solving it, so we can come back to this when machine can proactively put forward problems. (Aka have free will, agency and all that.)
> If I ask a machine what is 7 + 6 and it tells me 13, does that mean it has free will?
No, but machine did not solve the problem. It only calculated 6 + 7.
If you have 13 dollars and want to buy two things for 7 and 6 dollars, that is a problem you can solve. Machine can tell you 7 + 6, but it is you who solves the problem. Choosing to use some machine or another is part of your solution.
> In my point of view, intelligence and consciousness are orthogonal concepts.
Then what is "intelligence". I think it's one of the least understood word thrown around today. If there is a principal difference between "AI" and a calculator I want to know what it is.
quick quiz to check if you read the rest: 1) What was the actual problem and why? 2) Who actually solved that problem? 3) What acted as a tool in the process?
Why? I would think the key part is what it can do, not what hardware it runs on.
If you just haven't yet found how you can make use of the current stuff, keep in mind this discussion is always extrapolating what happens if the technology gets much better.
Intelligence is good for problem solving. You have a problem you need solved. Do you prefer a human do it rather than a machine? Why?