Earlier quoted context omitted.
Who cares? if everyone dies and you say "well it always changes" the answer is still "...and we could have done something about it and we didn't do enough." It has no bearing if it changed in the past if we can do something about it not killing most (non-rich) people in the future. Well it was one bearing if it was like this in the past: it gives people a convenient argument for dismissing it now. So if your goal is…
That wasn't their point at all. The question always is if we can even do something about the climate now or if we should spend the energy and resources into preparing for a potentially inevitable future. Humans have always been champions of handling change. Why should this be different?
It's usually easier to stop doing something than to deal with the consequences of doing something.
> Humans have always been champions of handling change. Why should this be different?
Humans have never faced this kind of change. It will be different because it's not just a different temperatures, it's the collapse of the ecosystem which we rely on for food.