In general, there was a difference between the way that the Native Americans were treated by the French and the Spanish on the one hand and by the British on the other. The French and Spanish societies were what one of the texts I teach from calls "frontiers of inclusion" while the British society was a "frontier of exclusion."
The reason for this was mainly economic. Neither the French nor the Spanish brought many colonists to the New World. Therefore, they needed the natives. This led to them trying to assimilate the natives to varying degrees into their societies. Mexico, for example, was largely "Indian" and those natives mixed with the Spanish gradually.
By contrast, many British settlers came over. They came to settle and farm, not to trap furs (like the French) or be landlords (like the Spanish). Therefore, they did not need or want natives. This led them to drive the natives out of the lands they wanted.
So economic demands led to very different relationships between the various colonizers and the indigenous people.