Answer:
He views his fate as being caused by the error of people, not abstract powers like "fate."
Step-by-step explanation:
In this speech, Mercutio shows that he does not think that everything is controlled by fate, which has often been the position of some of the characters in this play. Mercutio tells us that he wishes "a plague" upon both the Capulets and the Montagues. This shows that Mercutio believes them to be responsible for his death.