I mean, what those 1 million people would be even doing there? What would be their purpose there? Definitely not resources, because getting anything from Mars would not be economical.
I do understand to have an international base of few dozens to few hundred scientists on Mars who will be studying it 24/7. But that's about it.
I do understand to have an international base of few dozens to few hundred scientists on Mars who will be studying it 24/7. But that's about it.