1. Because the experience of interacting with AI is miserable. I like writing code. I don't like finding the magic incantation that gets the machine to write the correct code. I don't like correcting the machine when it gets things wrong. I don't like any of this, it's awful and I would never have gone into this field if someone had told me that it would be like this one day.
2. I cannot condone the means by which these tools were created, which is, as far as I am concerned, theft. I think it's unethical to use them at all, because they were created unethically. I dislike using stolen work, I think it's wrong, and I think everyone who uses it is making the world worse and normalizing theft. If continuing in my career means that I have to compromise my ethics, I wouldn't do it even if I loved this stuff, and see point (1).
3. Is anyone going to pay me more for my "more valuable" skills? Doesn't seem like it, engineering salaries on the whole are going down right now. You can believe they'll go up eventually if you like, but there's no evidence that will happen, or that it's happening. If my employer captures all the value, why should I care whether I'm creating more of it?