However, it is evil to colonize people, use your economic, military and political might to support corrupt and tyrannical leaders for your economic (and military and political) gain and then be upset that the very people you helped subjugate/oppress and/or create an environment in which life and liberty is impossible shouldn't then be able to seek asylum.

Wake up. The political situation in Northern Africa, the Middle East and the Sub-Continent is DIRECTLY the result of Western actors going back over a hundred years and continuing today.