"The Tempest" colonialism article main points and questions

Main Points

1 - Caliban and the role of the natives during colonialism - some people empathize with Caliban while others see Prospero as justified in his rule.

2 - Prospero’s ruling of the island after Sycorax as compared to European colonialism in the 15 and 1600’s. 

3 - How Shakespeare took inspiration for The Tempest from American colonialism and shipwrecks in the Americas.

4 - How Ariel’s enslavement and Sycorax’s other witch-like deeds affect the debate over who has right to rule the island in Prospero’s favor.

5 - How The Tempest has recently been read differently (from an colonial viewpoint) and used as an anti colonial argument in Africa and Asia in the 1960 and 1970’s.

Questions 

1 - Who is more justified in their claims to island rule, the dominant Prospero and Miranda as intruders/colonialists or Sycorax and Caliban as established rulers/natives?

2 - To what extent is The Tempest autobiographical? Maybe not an autobiography of Shakespeare himself but more an autobiography of the 1600’s and Europe at the time.