https://www.footprintnetwork.org/our...cal-footprint/
Humans simply are not living as good guardians of nature right now. This will not be helped if the human population reaches 9, 10, 11, 12 billion or more by 2100 as has been predicted while not significantly improving sustainability, the situation will only get worse. Large families themselves are not the primary issue - the primary issue is the unsustainable lifestyle of so-called developed countries in the current moment. I am hopeful that we will be able to live within our means some day however.
If you wish to "replenish" the Earth, why do you not care when it is being degraded?