[fastball]

If women consistently have < 2 children the population won't stabilize at 1 billion.

[ForHackernews]

Ok, get back to me when world population < 750 million. Then we can worry about depopulation.

In the meantime, our species has much more urgently pressing issues.

[fastball]

Our species really doesn't have more pressing issues.

Fucking the environment is very unlikely to destroy humanity, and that is really the only concern of any species.

As conscientious pieces of a greater whole, however, there are definitely more pressing issues.