Do not succumb to "we have to win the race" reasoning and escalation, when the race is leading off a cliff. It is, in fact, possible to stop things via international cooperation. Treat it the way we do nuclear proliferation. (Efforts to stop nuclear proliferation have not been perfect, but they've been incredibly effective and made it much more difficult to make the problem worse than it already is.)

Nukes are intrinsically complex and require a high degree of skill, time, and resources to pull off.

Attack drones can be as easy as strapping an off the shelf grenade to an off the shelf drone.

What fairyland do you live in?