Macbeth – doomed by flaw or fate?

In Shakespeare’s tragedy, Macbeth, the titular character is brought down after seizing the throne of Scotland as a tyrant. He murders his opponents, he chases away his enemies, and he spurs on a vigorous rebellion. But was his demise the result of fate — as the bulk of his tale was foretold by the mysterious witches of the wood — or by his own flawed character? Take a position and defend it using evidence from the play and beyond.
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