"birthrate is too low" is code for "the ratio of whites is too high"
"Population is too high" and "overpopulation" are also code for "the ratio of whites is too high"
Which is why they'll say the world is over populated then five infinity aid to Africa where they shut our 3x the kids. They'll say US birth rates are too high while pushing abortion? Hmm. No, the white birthrate is too high.