- improve child mortality rates so they don't feel the need to have "replacement children"
- improve education so they have fewer children with their own free will
- improve their financial situations so they don't need children for labor (this isn't some evil heartless thing that poor people do btw, a lot of child labor is for sustenance farming just to maintain the bare minimum of an existence)
- improve their access to healthcare and safe birth control
> In decreasing order of strength, fertility (TFR) correlates negatively with education, [contraceptive prevalence rate], and GDP per capita, and positively with religiosity.
Having decided that "too many" is the call (and that you're the person to make that call), would it be better, ethically, to leave that distasteful task of cleansing the undeserving to someone else? *what if they don't have the same notion of "undeserving" as you?
Overcrowding : https://en.m.wikipedia.org/wiki/Overcrowding
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Edit Add;
>ethical concerns<
The Trolley Problem : https://en.m.wikipedia.org/wiki/Trolley_problem
One of the biggest problems we have in the logical problem-solving space, especially with humanity-level issues, is that our soft systems (ethics, relations, morals, values) are left unstructured when in fact the opposite case is badly needed.