Yes, About That ...

This Doctrine of Discovery has nothing to do with existing treaties and not even anything to do with Canada.

But, you know, rea$on$:

These Papal Bulls gave certain European countries, namely Portugal and Spain, the power to conquer non-Christian lands and played a central role in the colonization of the “New World,” specifically the Americas.

 

(Sidebar: to wit.) 

 

It is a stretch to suggest that Protestant England with George III at its head (for the time) adopted this policy or that land never occupied by aboriginals was actually in their possession but, you know, rea$on$.