Yes, his post was relevant.
You suggested that the developing races would stop their excessive breeding if they were given a better standard of living - his point is that they do not.
When they come to a civilised nation, with health care, food and shelter, they continue to breed like rabbits and they are the reason our population is expanding and our public services are bursting due to the burden of immigrant families.
We must stop giving food and medicine aid to the developing world, and alow nature to take its course in controlling their populations.