This is a good thing: we are already significantly over the carrying capacity of the planet. A managed decline of population down to a couple of billion engineers, and robots for everything else, would mean a much better quality of life for the average human, and much better outcomes for the environment. Then, when we expand beyond Earth, we can grow the population again.

Technological developments have always driven the human species forward - all of this is nothing new. The difference now is the extremely high populations (enabled by technologies invented elsewhere in the world) in some countries with excessive unemployment levels.

Genetic engineering and molecular biology will also enable us to identify the genes which contribute the most to useful traits, and to expand access to those genes to a greater portion of humanity