Would it be better if nobody had access to easier ways to produce new and innovative nerve agents? Yes, of course it would be better.
Do I prefer a world where only state actors can build nerve agents, vs a world that includes state actors plus more? Yes, less sources of nerve agents is more good.
You might as well complain how pointless it is to block proliferation of nuclear weapons when malicious state actors already have them.
The world wont be safer by spreading nuclear weapons to more people, and similarly for nerve agents.
Fortunately, this sounds similar to nuclear weapons in another way, designing the weapon is not the hard part that limits them to state actors, its producing them that's hard.
Still, nuclear powers don't tend to publish their weapon plans publicly, for good reason, and the same logic should apply here.
I'm not using the comparison to imply this is as serious as nuclear proliferation btw, just that it's a useful example of knowledge that really should be kept limited.
The masses will use AI to do bioweapon design? That doesn't sound like something most people could do.
Knowledge and resources necessary to develop AI-proposed toxins: multiple PhDs, thousands of square feet (probably 10s to low 100s of thousands) of lab space, including nasty stuff, like bromides and heavy metals, and testing and evaluation of various delivery vehicles, ranging from canes with needles to air-launched warheads with atomizers.
"Risk of misuse The thought had never previously struck us. We were vaguely aware of security concerns around work with pathogens or toxic chemicals, but that did not relate to us; we primarily operate in a virtual setting."!!!
Operating in the rarefied air of 'science' they were unaware of the risk of misuse!
I don't think they can even conceive of the idea that the government might misuse this technology.
I think we agree...??
The thundering irony of this concept in a timeline where a (group of) scientist(s) discovered fission cannot be overstated.