>>507705288I forgot to add that even if it is not apparent because of the "we are all one human race" movement, there are other problems of super diversifying your genetic population.
Mixed-race individuals often have issues finding blood and organ transplants due to differences in human leukocyte antigen makeup, making them incompatible to the common distributions of HLA in bloodbanks.
In a sense, the multiculturalism of the world has kind of started a new era of evolution.
Where the evolutionary pressure has once again been put on the human race. Many of the mixed diversity will have unfavorable genetic expressions for their survival, but it will also lead to improvements for those that do survive.
Now, the problem is modern science where they cause these issues to be a non-issue by medicine and intervention.
So what we will see is a general decline in public health services due to an increase in inquiries for interventions.
This will also then affect the part of the population that are not a cause of the influx.
Then due to poor health of the population, the work market will be affected, and in turn economy and services.
A national decline will happen over many years, until the health sector either becomes corrupt and the rich and successful (implying they have not been deeply affected by their genetics) or the sickly will die off due to lowered quality of life and health institutions declining.
This will then create an increase in stability within the country and cause productivity to surge leading to golden years of improvement.