The problem has two sides: software and hardware. You can open source the software side all you want, it’s not gonna go very far when it has to fight against the hardware instead of working with it.
ROCm is open source, but it’s AMD. Their hardware has historically not been as powerful and therefore attractive to the target audience, so it’s been going slow.
That small inert lump of metal can have jagged edges that can cause injury later on. It also definitely is loaded with dirty crap that will cause infections. Overall it’s rarely “fine” to leave random, unsterilized foreign objects inside the body.