He's absolutely right about that. I feel it intensely when I'm expecting a baby myself ... that having a baby is an imposition on everyone else in the world, and they're all upset about it.
Julian Simon and others have long argued that humans are the ultimate resource. Given our origins I think he’s right and history has proved as much.
That said, I don’t understand the Catholic prohibition on contraceptives. It’s not Biblical. Is it considered a revelation by God through a particular Pope?