>The right question to ask is 'would I like to have this done to me' and if the answer is 'no' then you probably shouldn't be doing it to some other creature.
There are a million obvious counterexamples when we talk about other humans, much less animals, much less AI which we engineered from scratch.
The problem is that you're interpreting your own emotions as objective parts of reality. In reality, your emotions don't extend outside your own head. They are part of your body, not part of the world. It's like thinking that the floaties in your eyes are actually out there in the skies and on the walls, floating there. They're not - they're in you.
If we don't add these feelings to an AI's body, they won't exist for that being.