They don’t because their agenda is not about thinking it through but rather self-righteously defending their own individual psychology inspired behavior behavior(not having kids or not enjoying it). They really act like GOD or at least they think they are GOD. I am not saying every body who doesn’t have kids or doesn’t like their kids does this, only the ones who are conflicted about it.

I would suggest the 99.99% of the population has not “thought it through” because what it means is huge changes need to take place asap and it would challenge our infinite growth is God ethos that has been beaten into our heads since we could walk.

Throughout history, people have had difficulty in distinguishing reality from illusion. Reality is what happens, whereas illusion is what we would like to happen. Wishful thinking is a well-worn expression. Momentum is still another element: we tend to assume that things keep moving in the same direction.

The world now faces a discontinuity of historic proportion.

Your attention please. This is your pilot. We have crested in our industrial-evolutionary journey and are beginning our descent. Please lock your folding trays, put you seats in an upright position and try to survive the landing.