Answer:
It’s safe to assume that Kipling and the poem as a whole are in favor of the white man's burden because stanza 5 is so upbeat.
Step-by-step explanation:
For some, taking on the "White Man's Burden" is a way to atone for past wrongdoings committed in the name of power against those who have historically been considered to be at the bottom of the social and economic ladder.
For instance, the questioning tone of the stanza's last line ("Why brought you us from bondage, our treasured Egyptian night?") makes me think of Filipinos who are asking why they are being treated so poorly.
Now contrast that with the second line, "Take up the White Man's Burden and enjoy his ancient recompense," where Kipling seems to be implying that doing so is a way for people to acquire wealth and power.
Thus, while Kipling is romanticizing the White Man's Burden, he also recognizes that it can be used as a way to right past wrongs and gain social and economic power.