Look, what are the odds of being killed by a spider? tiny. And most spiders aren't even poisonous. But lots of people have an irrational phobia of creepy crawly animals, perhaps due to some unpleasant childhood experience. If someone is afflicted with such a phobia, maybe therapy can help them, maybe they'll grow out of it, whatever, but standing around saying 'it's very irrational of you to be scared of this probably harmless spider' is no help whatsoever. Either get rid of the spider for them or leave them alone, because when someone is freaking out they're not able to process information rationally.

We know that people don't react rationally to real risk probabilities, some are irrationally risk averse and others are irrationally risk tolerant. We know that such irrational cognitive behaviors are often exploited by unscrupulous actors to manipulate people for financial, political, or strategic gain. We know that the externalities of such exploitation impinge upon our economy, liberty and so so on.

Endlessly repeating an argument that people are already demonstrably indifferent to isn't getting us anywhere. Education is one long-term approach to alleviating that problem but it's very slow and expensive and outcomes are hard to predict and to measure. It has consistently proven easier for politicians to spend money on security services (both pragmatic and theatrical) than it has to raise the intelligence/wisdom of the public at large.