Well, okay, the same arguments can be used to question why we need (crewed) space exploration at all. It's extremely expensive, it doesn't really bring any new

Well, okay, the same arguments can be used to question why we need (crewed) space exploration at all. It's extremely expensive, it doesn't really bring any new scientific data. We've been to the Moon already, and what there is still to know about it can also be learned with robotic probes. Same goes for mining. Exploring Mars can also be done very well without involving humans. Colonization, you say? Maybe fix our problems on Earth first before "infecting" other planets with our species?