Friend, I inform you, that there are already millions of planets like ours that can be inhabited. It is unfortunate, but we cannot all flee from it since we do not have that technology to travel to any point in any universe, out of millions that exist similar to ours. For now, this is beyond all human comprehension. Nuclear weapons are today obsolete and harmless weapons, which can be rendered useless from great distances. The nuclear weapons they have are what they will use, but it is to extinguish us. For this they have nuclear detoxification weapons for the planet. What we should be afraid of is nuclear fusion weapons, which they already have, but they do not say so. Greetings.