Is there a name for cognitive bias where extremely unfavorable events like the end of antibiotics, or a permanent technological dark age, or the extinction of t

Is there a name for cognitive bias where extremely unfavorable events like the end of antibiotics, or a permanent technological dark age, or the extinction of the human race, are dismissed a priori with no justification? Like, something so bad that obviously someone would do something about it, without showing that someone really would or, indeed, whether someone even could. Somehow, this cognitive bias never manifests when we're talking about government overreach, in which All Laws I Don't Like Eventually Lead To Totalitarianism - but antibiotic resistance? Apparently no big deal.