I wish instead of focusing on taking humanity to a new planet more billionaires would focus on trying to sustain the planet that we already have.
Bezos hasn't been that focused on climate but in 2020 he did donate $10 billion to his Earth Fund.
Founding a new company that builds rockets on the other hand is something billionaires can do.
Plenty of relatively poor people have devoted their entire lives to working to help the environment, despite knowing their impact will be much smaller than what even a mere millionaire could accomplish.
Billionaires don't need to fix all environmental problems to make a very significant difference.
The perfect is the enemy of the good.
And what if we cannot acheive it, because of political and economical system at play i.e. local maxima holding us back and prevents us from breaking away from current order of things?