At the start of the play he states that he will just wait for the crown to come to him, and not do anything rash to become king right away. But the fate of becoming king gets to his head, and he kills anyone in his way of becoming king. It was his idea of fate that made him follow the prophecy and die, not his own free will. Fate is the enemy in this play, not Macbeth himself.
In 1984 we are shown how Big Brother and the Party are truly are terrible organization. When someone is arrested for acting and thinking things that are against the Party, they are taken into prison. Once in prison they are tortured until they are truly on the Party’s side, and love Big Brother. Winston goes from an average man, to a creature that was all pale and skinny to the bone. This is clearly not how people should be treated, and proves how awful the government was.
The fate of being a prisoner of the Party is to end up loving Big Brother and not resisting. At the end of the book Winston has finally given up on trying to resist because his life is fine, and it is described as a bullet entering his brain when he ends up loving Big Brother. This is a symbol of death being the same as loving Big Brother, that you are not a real person once you are under complete control from him. Given how he was treated by the Party and Big Brother when he was arrested, shows you that being ruled by that fate is not good.
Macbeth would have had a nicer story had there been free will rather than fate. The story would not have been as interesting, but everybody would have turned out better. If Macbeth’s fate was not told to him by the witches, it would not have made him go crazy because he would never have thought about the possibility of becoming king.
Free will might not have made the end of 1984 that much better. The main protagonists of the story, Winston and Julia, do have free will in the world, but this causes things to end badly for them. They get arrested and eventually do fall into the fate of loving Big Brother and the Party. But if the world never existed with this fate, their free will would have made things nicer for them.
These 3 depictions of 3 different worlds all have the same theme, which is that people should have free will, and not be ruled by fate.
2081 would also be better with free will because there would be more people with different personalities, weaknesses, and strengths. Not everybody would be the same, and there would be a world more like ours. A world where people are different, but still have compassion for each other.