The phrase caught on and most people, including me, typically add the caveat that while demography may not be destiny in an absolute sense, it certainly it is a key driver of events in the world. If you read the Population Institute's new report on demographic vulnerability--and I hope you have--you will find the term there, as follows:
Demography is not destiny, but demographic trends do matter and rapid population growth, along with rapid urbanization, can strongly affect a country’s welfare and destiny. Nations with rapidly growing populations can still make gains in eliminating hunger, alleviating severe poverty, coping with water scarcity, minimizing environmental damage and restoring or maintaining political stability, but population growth can make progress more elusive. Rapid population growth, as outlined in this report, is a challenge multiplier and the challenges are already urgent for countries like South Sudan, Niger, Burundi, Sudan, Yemen and Somalia.That is, in my opinion, not only a correct statement but probably an understatement of the challenge faced by countries with high rates of population growth.