It only takes one to tip everything over. It’s like the atomic bomb, I imagined had the atomic energy been discovered in a less urgent time (WW2) the kind of debates that could arose would’ve been the exact same as what you’ve mentioned above. And just like the atom bomb, it only takes one country to heed to the call of power for everyone else to follow, as it would be too much of a threat not to do something. If China amassed an army of cyborgs, capable of processing, transferring information faster than any living thing and stronger than any organism we’ve seen before then it is simply a matter of survival for the US to join and enter the biotech race. Politics would die and realpolitik will emerge.