No. Unless Musk has a stupendous trick up his sleeve, this is a unavoidable problem with the whole enterprise. Hard as settling in the new world was, it was tremendously easier (even at the time) to settling on Mars. The best chance for a Mars colony would be an extractable resource that makes it economically sensible to support a non-self-sufficient outpost (i.e., try to become Edmonton, Canada). But there's nothing analogous to oil. The most promising natural resources in space are asteroids.