What is Greg Van Eekhout's attitude toward his story "Native Aliens," and what is Stanley G. Weinbaum's attitude toward his story "A Martian Odyssey"? Both share the same subject, colonization.

Green van Eekhout's short story "Native Aliens" was first published in So Long Been Dreaming: Postcolonial Science Fiction & Fantasy in 2004. The story follows two temporal plot lines: the first is of a 1940s Dutch family that lives in Indonesia. Though this family has been living in Indonesia for dozens of years (and have since intermarried), they continue to identify with Dutch culture. The second narrative arc is supplied by a group of humans who have colonized a planet called Breva in the (future) twenty-fourth century. These humans have been genetically modified to resemble the native Brevans. Therefore, time and genetic or (in the case of the Dutch) biological changes have been wrought on each group of protagonists. When a revolution in Indonesia causes the Dutch family to return to the Netherlands and later to America, the Brevan-Terrans seek a return to earth. In both cases, the groups find they are no longer suited, culturally or physically, to the land of their ancestors. According to van Eekhout, only upon repatriation does a colonized people (especially the population's children) realize the extent of colonialism's effects. Colonialism cannot be undone.
In Stanley Weinbaum's 1934 "A Martian Odyssey," the colonizers are (more typically within the genre of science fiction) human. The colonizers are four scientists aboard a ship (Ares) which arrives on Mars. One lone chemist, Dick Jarvis, ends up losing the ship and, while making his way back, befriends an alien named Tweel. Tweel reveals his humanity when he steps in to aid Jarvis when the latter is being attacked by creatures pushing carts of organic matter to a domed chamber that houses a magic crystal. This crystal is, according to Jarvis's hypothesis, radioactive. When Jarvis is rescued by the Ares, he misses the friendship of Tweel, but his colleagues are enthusiastic at his retrieval of this magical crystal. As in van Eekhout's narrative, those who experience colonialism are effected differently than those who engineer or sponsor it.
Weinbaum's depiction of colonialism (while critically acclaimed) is a more typical colonialist narrative: the colonizing group seeks resources and, when it finds those resources, leaves. Greg van Eekhout's version focuses on the experience of those dispossessed of their ancestral lands over generations, such that they do not identify with their native (colonizing) land despite being irreversibly changed by it (through marriage or genetic modification).
Both writers are critical of colonization, but van Eekhout is more sensitive to the changes wrought over time. Insofar as he showcases the situation of the dispossessed, he demonstrates that colonialism can never occur without consequence.