40 acres and a mule vs giving natives back their land
40 acres for every Black American would be 1.769 billion acres of the US’s 2.43 billion acre area, for a total of 72% of the land. Combined with the percent of the US that rightfully belongs to natives, we end up with a total of 1.72 times the US’s current size, so we clearly can’t satisfy both without expanding the country. I propose that we draft all white people into digging a secondary subterranean layer, providing the additional required land while providing humane employment for a demographic that sunburns easily.
Your plan involves twice as much work as it needs to.
We only need to dig a subterranian layer below half of the US. We can use the dirt we get from the under-layer to create an over-layer, and if we add the two up we get the same amount of land for half the labor. We can then focus on building infrastructure and housing on the new layers using the labor we would have used to finish the subterranian layer.