Possibly, but our users find value in not having to kit, store, or ship parts to CMs.

I'm skeptical this is a cost effective for low volume prototyping which is where the speed of made in America matters.

whats the closest to this that exists today? (??? + pick and place?)

I'm not the expert but Gemini doesn't say anything exists besides the Voltera V-One (which obviously doesn't work for complex PCBs). I am imagining something like a PCB microfactory the size of a container (or even smaller) that completely handles PCB etch and drill, solder paste application, PnP, baking, and testing.

That would be super cool. Difficulty comes with multi-layer PCBs, hard to find a solution for laminating.

PCBA lines are largely automated as of today, issues start when you do high-mix work. Most time ends up being spent switching between jobs and programming machines, meaning that tool usage time is low.