> The flaw in that logic is that, if it weren't for the people who develop lethal weapons for the bullies, we wouldn't have to fear the bullies.
You can't uninvent weapons, and you can't prevent the bullies from making their own weapons.
The problem with an impenetrable defensive shield is that it gives your potential enemies the heebie-jeebies (technical geopolitical term) that, now that you have the shield, you can attack them without fear of reprisal. If the enemy thinks you're working on a credible shield (or even a shield you think is credible) their best option is to attack now before you, emboldened by your sense of invulnerability, attack them.
This is an ongoing concern of US weapons policy. By refusing to back down from improving our missile defense capabilities, we undermine MAD and our adversaries’ willingness to engage in disarmament (thereby making it more likely these weapons will be used).
You can't uninvent weapons, and you can't prevent the bullies from making their own weapons.
The problem with an impenetrable defensive shield is that it gives your potential enemies the heebie-jeebies (technical geopolitical term) that, now that you have the shield, you can attack them without fear of reprisal. If the enemy thinks you're working on a credible shield (or even a shield you think is credible) their best option is to attack now before you, emboldened by your sense of invulnerability, attack them.