The real question isn't which rock we get to first, but which path actually leads to a sustainable human presence off Earth. The Moon is a barren, airless desert with virtually no accessible water or carbon, meaning any colony there would depend on constant resupply from Earth forever. That's not a stepping stone; it's a resource sink. Mars has the raw materials for self-sufficiency, and that's what matters for long-term survival. If we're serious about becoming multi-planetary, we should go where we can actually live off the land, not where we'll drag Earth's ecological footprint along with us.