Regarding the question of the population ethics of donating to Givewell charities, a 2014 report commissioned by Givewell suggested that donating to AMF wouldn’t have a big impact on total population, because fertility decisions are related to infant mortality. Givewell also wrote a lengthy blog post about their work in the context of population ethics. I think the gist of it is that even if you don’t agree with Givewell’s stance on population ethics, you can still make use of their work because they provide a spreadsheet where one can plug in one’s own moral weights.
Regarding the question of the population ethics of donating to Givewell charities, a 2014 report commissioned by Givewell suggested that donating to AMF wouldn’t have a big impact on total population, because fertility decisions are related to infant mortality. Givewell also wrote a lengthy blog post about their work in the context of population ethics. I think the gist of it is that even if you don’t agree with Givewell’s stance on population ethics, you can still make use of their work because they provide a spreadsheet where one can plug in one’s own moral weights.