To some extent, I agree, I don't see a problem if the world population shrinks to <= 1 billion over a few generations.
The main thing we should be focusing on is the quality of life for those who are born, primarily in terms of education and opportunity for development, ie fewer people leading more productive, creative, fulfilling lives, rather than billions of starving, uneducated, unwashed, etc, as is sadly the case today.
The main thing we should be focusing on is the quality of life for those who are born, primarily in terms of education and opportunity for development, ie fewer people leading more productive, creative, fulfilling lives, rather than billions of starving, uneducated, unwashed, etc, as is sadly the case today.