Adopt. Don't make new people. Take in people who have been abandoned. My father had the same idea in the 1970s — I suppose I should be fortunate my mother overruled him on that one. But he had the idea almost 50 years ago, for similar reasons.
And apply a similar philosophy to the rest of your life. We all know the word recycle. And I have been a proponent of recycling for over 30 years. I've heard it doesn't help. I've heard some municipalities take it all to the same place. I don't care. I still do it. But I also remember when there were three words. The original slogan went "Reduce. Reuse. Recycle." Many people forgot the first two. You can reuse and repurpose a lot of things. But you should also reduce consumption as well. Eat less processed food. Stick to protein — plant and animal (unless you're a vegetarian/vegan obviously). Stick to the outside of the grocery store (produce, dairy, deli, meat). Bakery is nice for an occasional treat, but find out what they make in-house and not ship in frozen.
I don't think I'm doing enough on my own. I also don't have illusions I'll convince many others. I'm not really trying to. I'm not trying to save the world, just survive it.