No, the way the brother explains it, is enough to be considered it dangerous. There are chances that the one forming in your body could be entirely different to what you're expecting. Plus the only natural material used to make that organism was the seme's semen and the rest is artificial, that enough is dangerous. Last one is that even if the one that comes out is the you're expecting, there are still huge possibilities that they will be born with abnormalities, such as incomplete limbs, disorders, diseases/illneses, etc.
And the technology we have rn is a little bit... and i doubt that it will evolve to something like in this bl.
Plus adoption is exist.
we need this in real life so men can stop crying about how they really wanto to have a child while "bad" women didn't, they can have a child between them (๑•ㅂ•)و✧