A worthy sacrifice for the advancement of humankind
Also, trying to establish a self-sustaining base on Mars right now is short-sighted and a tremendous waste of energy and material.
Also also, how you do a thing is (often) as important as doing the thing itself, we're still suffering the consequences of last centuries megalomaniacal claims to be advancing humanity at the expense of a few people.
And just in case someone mentions something like D-Day, I doubt any of Elon's workers signed on to sacrifice their bodies to "save humanity" in the same way the Allies signed up (or consented to be drafted) to save Europe.
Did you mean the Eastern Front?
elonkind