For me that remains open to interpretation. The colonies were of different countries and up until Lincoln, they mixed together with the natives (what was left of them anyway) and the black slaves. And though his work was cut short, tangential evidence suggests to Lincoln working towards a complete integration.

Many use that vision when mentioning Lincoln and it’s possible that’s why it was also used as an argument in the article.

Then again, deconstructing it into a form of colonial dominion is also an opinion.