In New Spain of the previous century, Bartolome de las Casas as well as some other priests called attention to the abuse and enslavement of Native Americans. But if you mean the 17th c. North Atlantic colonies, there were early on those who were sympathetic to Native Americans. Thomas Hariot's 1580 account ( and John White's paintings) emphasized the humanity of the Native Virginians- White even placed a hypothetical portrait of a tattooed Pict next to a tattooed Virginian to make the point the even English bodies used to look pretty flamboyant. Roger Williams would develop a very cooperative settlement with the Narragansett, later the colony of Rhode Island. Adriaen van der Donck would write quite sympathetically of the Native Nations that surrounded New Netherland ( later New York). And there were those who were quite happy to simply trade with Native Nations and not displace them: Thomas Morton's trading operation of Merrymount, was doing quite well until his Plimouth Colony neighbors shut him down. Likewise the trading post of William Claiborne, on easily-defended Kent Island in the Chesapeake Bay, likely would have succeeded if his claim had not run up against the authority of George Calvert, Lord Baltimore, who had been granted the colony of Maryland. And the focus of Samuel de Champlain in New France was not so much conquest as mutually-profitable trade with neighboring Nations. But in these early decades there really was not much question of kicking Native Americans out of their homes. The colonies were quite small, fragile and hard-pressed to simply survive. Native Nations were an important part of that survival ( as with the famous story of Squanto, helping the Plimouth Colony). And, to the Native Nations, the colonists were initially a useful source of trade goods and were often valuable allies in feuds and wars.

By mid century, however, the colonies were generally much more secure and far less willing to be good neighbors. They would also be expanding, and that expansion displaced Native Americans and made them more of a threat. Their trade goods also disrupted previous trading patterns among the Native Nations, producing competition for high-value beaver pelts. The result were a series of wars. Adriaen van der Donk would be killed on his outlying farm in 1655, when the Peach Tree War broke out because of Dutch expansion into the Delaware Valley. In 1676, Metacomet ( AKA King Phillip) after colonists had killed two of his people and his son rallied a large Native alliance to try to decisively stop the colonies, if not wipe them out. Even in Rhode Island, the previously peaceable Narragansett were attacked by the colonists, and the remaining band rose up to join him. And the previously conciliatory Williams would lead a militia unit in King Philip's War. After that pretty much all attempts to coexist stopped. The accepting Moravians would convert and foster Native Americans, but for the most part there would be only truces from then on....and those uneasy ones.

In Europe, more than a few writers like Montaigne had proposed that "savages" were innately noble, a concept that could even be traced back to Tacitus's description of the German tribes. That idea of the Noble Savage ( never actually proposed by Rousseau) was a recurring theme in the 17th c. as well. However, the English term Noble Savage ironically dates to about the same time of King Philip's War, in Dryden's 1672 The Conquest of Granada. But with the New World being so lucrative for the Old, there were few if any voices asking for the colonies to be abandoned and the Noble Savages to be left alone.

Williams, Roger ( 1643). A Key into the language of America.

van der Donck, Adriaen (2008). A Description of New Netherland. Translated by Goedhuys, D. W. University of Nebraska Press