I’m sorry but I remember quite recently when 3d printing was promised to do this and it failed miserably. Mostly made a lot of figurines. And a few specific use cases where it shines. Just as one would expect from a Gartner hype cycle.
100% agree with you; don't care if it's about 3d printing, AI, or rockets. My point is that until we can build a fully autonomous factory on Earth, we're not going to Mars.
https://en.m.wikipedia.org/wiki/Gartner_hype_cycle
We are currently in one for AI.