This is far from unique to nuclear materials. In the news today there was an explosion of a tanker truck full of petrol, which killed ~100 people. We cannot rel

This is far from unique to nuclear materials. In the news today there was an explosion of a tanker truck full of petrol, which killed ~100 people. We cannot reliably warn people away from anything, and yet some industries are safer than others. Applying this standard we’d have run away from petrol a long, long time ago. IOW, the standards you seem to use are unrealistic, and unevenly applied. This really isn’t against you: this exact line of reasoning is quite common and demonstrates that we are terrible at risk management.