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I’m not sure what the PoD would be. But if America somehow maintained open borders with Europe and Latin America to the present, what would its demographics look like?

If European immigration was unobstructed, would the US be able to get close to 100 million immigrants? And how many children/grandchildren/etc... would they have by now? What kind of total demographic impact would we be looking at? Would they be mostly linguistically assimilated by now?

And with Latin American unobstructed, that would certainly result in large scale immigration post 60s. Would the US be able to get 100 million or more people from them? Many would speak Portuguese or some local/indigenous language, who I would assume have smaller populations and are consequently more easily assimilated. The Spanish Speakers on the other hand would be able to form massive communities that might take multiple generations to speak English as their primary language, no?

Between Latin America and Southern Europe, this probably makes the US a Catholic majority or plurality?

And if we combine this with a scenario where America stays out of WWI, Kerensky withdraws, and the Communist Revolution, Eastern Europe doesn’t the level have emigration restrictions, reduced fertility, and death of the OTL. Could this create a wave of Eastern European immigration that gives the US 100+ Million Orthodox Christians by the present?

I also assume America has more Jews than OTL Israel here?


Can the US here get to a billion people by the present?
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