The problem with technology is that the people who have it conquer and kill all the people who don't, essentially ensuring a destructive race to the bottom. You would need a mutual international alliance of nations who not only renounce the technology but also agree to invade anyone who attempts to develop it. Our closest precedent is nuclear weapons, but rather than renouncing them, the US's position is that "only we should have them" and that other people acquiring the same tech they have are valid targets for invasion, and they will obviously apply that notion to any new technology that can be weaponised as well.
Google which countries have nuclear weapons. Hint: It’s not just the US, it’s also its allies and frenemies who’ve not been invaded. It’s only nutball countries like Iran that get invaded when on the cusp of acquiring it and for good reason.
