Colonizing another planet might hedge against existential risks, but it doesn’t address the psychological and social ailments that plague us on Earth.
The same inner struggles - greed, lust for power - will accompany explorers to Mars, and without first 'laying aside the burden of the mind' of our species here, we might as well just copy paste all of our problems here on Earth over to Mars.
In c. A.D. 62-64, Seneca writes Letter XXVIII of his Moral Letters his friend Lucilius entitled "On Travel as a Cure for Discontent".
In this particular letter, Seneca explains that simply changing location cannot rid one of inner burdens.
"Quaeris quare te fuga ista non adiuvet? Tecum fugis. Onus animi deponendum est; non ante tibi ullus placebit locus."
“You ask why such flight does not help you? You flee with yourself. You must lay aside the burden of the mind; until you do this, no place will satisfy you.”