Another straw man.
It seems like you're getting your "argument" from retards of the Far-Right.
In reality, it's the fate of ALL developed countries; people spend more time in their workplace, making it a living, rather than sitting (or, fucking) in their beds.
Africans would have to diminish their reproduction rates, as they always suffer from famines and wars.
It's counter-productive, but many people shouldn't be parents. I will even add, most humans shouldn't be having children altogether. Most are dumb, or abusive, or simply, unfit for parenthood.
Planting "your seeds" is something, but making the stereotypical Deadbeats parents ain't ideal.
An IQ test; verbal and mathematic tests, a literacy test, and a psychological guideline (from their local psychiatrist) are needed. Not all of us are fathers or mothers. Have you listened to Stromae (that Belgian well-known singer, from Rwanda) who said (basically); "everyone can have children, but not everybody can a dad".
We need better Human Selection of future parents. Lamagoodlism has to die.