Population reduction advocates never seem to argue that themselves committing suicide would be the moral choice, which reveals they are valuing the preservation of their own current lifestyle over the lives of the "others".

In practice, it seems like the majority of people who call for population reduction are white/western supremacists who lack empathy for humans born with less privilege.

Birth control should be freely available to every human on the planet. Beyond that, I don't think there is any moral policy available to reduce population.