I totally agree that most catastrophes (including anthropogenic ones like global thermonuclear war, unstoppable climate change, etc.) would be extremely unlikel

I totally agree that most catastrophes (including anthropogenic ones like global thermonuclear war, unstoppable climate change, etc.) would be extremely unlikely to destroy all life on Earth. But destroying humanity would take quite a bit less, so I am willing to entertain arguments for colonizing the inner solar system.