>The danger of something like AI+drones (or less imminent, AI+bioengineering) can lead to a severe degradation of security

For smaller countries nukes represented an increase in security, not a degradation. North Korea probably wouldn't still be independent today if it didn't have nukes, and Russia would never have invaded Ukraine if Ukraine hadn't given up its nukes. Restricting access to nukes is only in the interest of big countries that want to bully small countries around, because nukes level the playing field. The same applies to AI.