Your argument re Hawaii is disingenous (and the finches) an island springs up in the middle of nowhere, without the eons (and really Hawaii isn't that old in geologic or even biologic time) and conditions necessary, life would probably not evolve independantly. But fortunately the previously barren soils (and volcanic vents) of Hawaii didn't exist in a vacuum....and it was seeded with life from areas where life was already established, then flourished and evolved to fill the previously barren niches of the island(s).

Same with the finches....there were no birds there to begin with. So finches got there, and then evolved to take advantage of the previously underutilized niches. And both the birds and the plants evolved. there were no noative species of finches for the migrated species to overtake.

I do not see biology as static. And introduced species into an already established ecosystem is NOT evolution, (And you're a biologist? Geesh, even this geologist knows what evolution is) it's environmental supplantation.