That's honestly not all that unfeasible if SpaceX gets Starship reuse down. Assuming we get launch costs down to a few million, it won't even be that expensive relative to the size of the problem. And launches can be parallelized pretty well - just build more launch pads.
The cool thing about reusable rockets is that even for a project like this you're not going to be rocket construction limited. If every rocket can launch 20 times (and that's pessimistic!) you only need to build 300 of them. And say you have ten launch pads, you only need to launch once a week per, to grind through the problem in a decade.
And that's all of course assuming SpaceX don't manage to scale the platform up further, improve cargo capacity etc.
It's a civilizational project, sure, but it wouldn't even be as expensive as the Apollo program.
The cool thing about reusable rockets is that even for a project like this you're not going to be rocket construction limited. If every rocket can launch 20 times (and that's pessimistic!) you only need to build 300 of them. And say you have ten launch pads, you only need to launch once a week per, to grind through the problem in a decade.
And that's all of course assuming SpaceX don't manage to scale the platform up further, improve cargo capacity etc.
It's a civilizational project, sure, but it wouldn't even be as expensive as the Apollo program.