FINISH HIM
The reason why I think Shakespeare had decided on ending his story this way is because he decided to provide the relief we as the audience wanted for the people in the kingdom since they deserved it after so much chaos Macbeth caused by defying the balance of nature that the kingdom had established. Once Macbeth came into power their peace had ended and they were lost and confused of what has just happened and how it had ever been possible in the first place. Macbeth did a terrible thing the kingdoms people knew that something was wrong; they knew felt that Macbeth was never meant to rule their kingdom and once some found out the atrocity that had happened they decided on fixing things with their own hands and brought the kingdom peace of mind.