Also, the argument "that if we don't do it our enemies will do it" is bogus. Biological weapons and chemical weapons have not proliferated and their use has be

Also, the argument "that if we don't do it our enemies will do it" is bogus. Biological weapons and chemical weapons have not proliferated and their use has been very rare. You might as well say "if we don't destroy them first they will destroy us, so we must immediately attack first" which gets you into Dr Strangelove territory. China did not expand their nuclear arsenal for decades, but now they have started building again. Why is that? It's because they saw the US and Russia doing it. So my counterargument is that if you build it, your enemies will also have to build it. Another counterargument is that if you build it, it will eventually find its way into your enemies hands. Russia's planes would not fly into Ukraine because Ukraine has old Russian air defense missiles. US Stinger missiles are in the hands of a lots of groups. In military strategy you have to plan to fight against your own weapons, because you have to assume the enemy has spies, or can just plain buy your weapons, or reverse engineer them. So if you build it, you have to assume your enemy will get it also.