What attitudes of the British Empire are expressed through "The White Man's Burden"?

Rudyard Kipling's poem "The White Man's Burden" expresses the idea that the British, Americans, and other colonizers from the West are doing native peoples a great favor when they come and take over their countries. Whites are pictured as members of a superior, Eurocentric culture that nobly sends its best young men to sacrifice themselves to bring the gift of civilization to people who Kipling calls "half devil and half child."
The poem also strongly implies that the "sullen" natives should be more grateful for the gift of white presence they are being offered, but also that, nevertheless, the whites should solider on patiently as they bear the "thankless" burden of colonizing. This includes being blamed and hated by the inferior people they are trying to help:

The blame of those ye better
The hate of those ye guard

To Kipling, the colonizers' purpose is:

To seek another’s profit
And work another’s gain

The poem never asks whether the natives want the white men bestowing the blessings of their "civilization" on them or if colonies operate primarily for the benefits of the white overlords. The attitudes expressed are the racist views of conquering peoples who can't understand why those whose country they've taken over might be resentful.