Was proselytising Christianity just a cover for greed?

Christopher Hitchens on Tom Paine:

Paine saw what was happening to the Indians, and saw also that the theft of their land and the threat to their existence came largely from proselytising Christianity, which was used as a hypocritical cover for greed. After the New York Missionary Society had staged a meeting with the leaders of the Osage Indians in order, or so they said, to present them with a copy of the Bible, Paine asked sarcastically what good this was intended to do:

Will they [the Osage Indians] learn sobriety and decency from drunken Noah and beastly Lot; or will their daughters be edified by the examples of Lot's daughter? Will not the shocking accounts of the destruction of the Canaanites when the Israelites invaded their country, suggest the idea that we may serve them in the same manner, or the accounts stir them up to do the like to our people on the frontiers, and then justify the assassination by the Bible the Missionaries have given them?