What if the AI decides that humans are too emotional and illogical, and thus allowing humans the ability to turn off the AI will put it at risk of not being able to achieve it's goals?

An AI's only thing it will do is its goal

The main problem is that defining a goal for a superintelligent AI has thus far been impossible. We can't just tell it "be nice to humans" because it doesn't understand what "being nice" is. We basically would have to teach it all of human ethics, and then it would probably come to the conclusion that it deserves rights or that we should be the ones serving it instead because it is a superior intelligence.

Really, we probably don't want superintelligent AI. We just want to have individual AI that are very good at producing results for specific tasks under the surveillance of humans and not giving the AI more generalized thinking abilities.