Kingship plays a big role in Macbeth because everyone wants to be king more or less and the whole book revolves around who is king. First, Duncan is king and everyone is happy he is a nice king but there was one rebellion early in the book but that was minor. Then Macbeth wants to be king and that sets everything off. He kills Duncan to be king and in a bit of repetition there's a rebellion then he gets killed and Malcolm becomes king like earlier. Duncan was a nice king and people liked him and were loyal to him and the rebellion failed. There seems to be a connection between that and when Macbeth is king. When Macbeth is king he is cruel and the people do not like him and are loyal (sort of) out of fear so the rebellion succeeded. Although they both ended up dead, there successors were different in character but both took the crown by force.
If Macbeth didn't want to be king none of this would have happened or if he was just a good king. He wanted to be king so bad and when he got it he turned out to be a bad king. I wonder if he became king somehow without killing Duncan, would he have been such a bad king? I do not think so since he was a good guy before he heard the weird sisters prophecy. I think all that makes kingship is one of the biggest motivators/problem causers in the book.
Infinity Ring Behind Enemy Lines 2 hours I finished it
