The end goal is the sustainable colony. The only way to get there is to have low-cost, routine surface to orbit launches. That is what SpaceX is working on now,

The end goal is the sustainable colony. The only way to get there is to have low-cost, routine surface to orbit launches. That is what SpaceX is working on now, that is their current goal. I'm unsure of how you consider what they're doing right now immaterial to their goals.