“...By then I believe we’ll be planting Mars trees right beside them.”
Seeds returned to Earth via Chinese astronaughts - sold to wealthy, trust-funded bidders, planted over looking the vast American slums. These seeds will be noted for their rapid grown and voluminous folliage - ideal for blocking unwanted views of the slave areas, ever present and ever growing slums, old industrial areas, unused cities, and most anything the fully-vested political elite deem unsightly.
I’ve seen this movie. In a few more years they will grow legs and start killing people.