How far can Shakespeare's The Tempest be seen as a colonization?

I would have to agree with the previous answer as far as
it goes.

When Prospero makes his decision NOT to get his
vengeance against his brother and the King, his whole attitude changes.  He forgives
them.  He breaks his staff of power and throws his book into the sea.  He forgives
Caliban and bequeaths the island back to him.

All this
implies that Caliban has learned and once the foreigners leave, the island would be
his.  With no foreigners, no colonization.

If Caliban, a
native of the island, is compared to the Native Americans, what of Ariel?  He, too, is
native to the island and is a magical character and usually visualized as quite pleasing
looking (except when he is the Harpie, of course).

At the
end of the play everybody except Caliban returns home abandoning the "new
world".