I would fully agree you with you. Newton's Third has a habit of showing up in many sociopolitical scenarios. This alone would make prediction any distance into

I would fully agree you with you. Newton's Third has a habit of showing up in many sociopolitical scenarios. This alone would make prediction any distance into the future effectively impossible, even if we ignore the million other variables involved. Thought I think we can at least consider which scenarios seem, at minimum, more or less likely than others. As for examples though, we have to consider two major differences. First, extremely low fertility rates are extremely new -- even as recently as the 60s the US total fertility rate (average number of children per woman over their lifetime) had peaked at just a bit under 4. That already meant things like fertility did not really play a major role in these issues. And obviously as you go further back there is an upward trend. The second issue is that widescale welfare systems did not exist mostly until the 20th century, and the great depression time in particular. You had things like poorhouses where people could exchange hard labor for a meal and bed, but these were extremely local and small scale systems. There would not be support for millions of foreign individuals unable to otherwise independently support themselves. As a consequence of this, mass migrations were effectively impossible. So you won't find today's scenario in the past, because it did not exist. But I do think we can at least see rough analogs of this scenario play out practically everywhere that 'we' have colonized and decided to stay. Those were different times and war was often involved, but when you look at the times following peace things rarely got better for the natives. Once 'we' established ourselves disparities just grew over time and native views, values, and cultures were gradually relegated to an ever smaller piece of society to the point that, for instance, today in America we rarely even acknowledge Native Americans when speaking of things like 'minority representation.'