Don't be too hard on yourself. I wouldn't call having kids a stupid decision but at the very least, you got to get them ready for the world. Calibrate your expectations and their's too if you want them to be happy.
If you can see what is going to happen to this world I really do not think I can get them ready for any of the apocalyptic scenarios. And going through the local education system and competing with foreign talent is nothing compared to what they are going have to face on a degraded earth.