Babies need the gravity to grow inside the womb. That will be very difficult to achieve in space.

Yes, the followers will want to emulate them. They want that to happen, and the judge is providing them with what they desire. It is a dangerous political tactic.

The judge is personality martyring them and may cause other people to follow them.

The jury probably already knew this. In this case, climate change is well known, and there are a number of climate change protests going on, so this is not a rocket science for the jury to determine why this is happening. From the jury's perspective, the judge prevents them from explaining their motivations and are afraid of the grim reality. Is that influencing the jury in any way?

You are correct. I did not suggest that they should be let off. The judge is preventing them from explaining their motivations in court. It is already known what motivates them, so why prevent them from explaining their motivation?

It seems like the judge does not want to accept the grim reality they are living in right now. This is not a healthy mental state for the judge. There may be a need to replace the judge with a tough judge who is not afraid to face reality.