This might be the point of disagreement... Let's agree to assume that many disasters, natural and social, have befallen humanity over its existence, and that so

This might be the point of disagreement... Let's agree to assume that many disasters, natural and social, have befallen humanity over its existence, and that some of them are going to increase in frequency proportional with the increase of CO2 in the atmosphere. Can we also agree that humanity has gotten dramatically better at mitigating the negative impacts of various disasters, and especially over the time frame of people who are currently alive? If we're good on both of those, then I think the disagreement is whether we'll continue to dramatically improve or not. In other words, if we can drive the total negative cost (premature deaths, property damage, civil unrest, etc.) of certain disasters towards 0 by improving our response/mitigation capability, then it won't really matter if they come at an increased rate, the additional impact is a rounding error. If you agree with this, or see how one could agree with it, then maybe you can see why it's frustrating to hear people freaking out about climate change being an existential threat (it can be, given Venus, but that planet had no humans opposing it) which will doom our planet unless and only unless global CO2 is reduced (at some cost, perhaps partly of our species' ability to improve our mitigations fast enough).