The usual nauseating stuff.
The noble native peoples were busy trying to kill each other off, so probably the European intervention - at least in the Spanish lands - saved a lot of them and even their culture.
It’s true that Indians in the English lands fared less well, since while the Spanish evangelized them and set up mission villages (self governing, as long as they abided by European Christian practices), the English drove them out of the territories unless they could be used in fighting European wars.
But either way, the problem is that he who has the most technology and the strongest culture (which usually go together) wins, and Indian culture was already in decline. The Indian populations of Mexico hated the Aztecs who had conquered them, and up north, the Iriquois were always fighting with everybody.
So let’s forget the image of the Indian idyll and be realistic about the whole thing.
Its true that Indians in the English lands fared less well, since while the Spanish evangelized them and set up mission villages (self governing, as long as they abided by European Christian practices), the English drove them out of the territories unless they could be used in fighting European wars.