Back when I was still on Reddit, I once saw a post from someone on the subject of having children in modern times. I don't remember the exact quote, but I'll do my best to convey the gist: "I apologized to my wife for having children with her in these times. She said 'never apologize for raising dragon slayers in a time when there are dragons.'"

I absolutely recognize the problems with having a kid in a time when the future is in (very legitimate) question. However, if a real solution to our problems is found, it will probably be our children (or theirs) who do so. Certainly, if no one has any more children, the species has a very definite finale more assured than any other crisis we're currently facing.

I have a toddler, but I worry about their future every day. Anyone who decides to not have kids (for this reason or others) isn't wrong to do so. The dragon slayer message still strikes a chord with me, though.