The effects of a Immune Americas would mean that the utter social and political collapse of the period would not happen. Political and social structures would still be in position to resist Settlement Colonization. Though, of these the Aztecs would fail on a political level, but the magnitude of political and social collapse would still not be as bad and the butterflies would see a much longer conquest of the region.
With European powers unable to bring in large groups of settlers the Client Colonization style of Colonization would become the most popular. European dates would exact their tribute and interfere in local politics to bring about domestic social and cultural changes.
With European powers unable to bring in large groups of settlers the Client Colonization style of Colonization would become the most popular. European dates would exact their tribute and interfere in local politics to bring about domestic social and cultural changes.