If you look at it, that kind of humanism (where the distinction between "humans" and "not humans" is more important than the distinction between, say, "Christia

If you look at it, that kind of humanism (where the distinction between "humans" and "not humans" is more important than the distinction between, say, "Christians" and "not Christians" wasn't in vogue in the 16th century. 16th century Europeans sent enormous numbers of missionaries to the Americas with the aim of converting the natives; they wouldn't have done that if orangutans were the prevailing primate on the continent.