I mean in the 60s we all thought we'd be destroyed by atomic bombs
Which wasn't something that was guaranteed to happen. You had a reasonable hope that political interaction would make that unnecessary, which is what ended up happening.
We are 100% guaranteed to face climate catastrophe and can no longer prevent it, only attempt to handle and contain it when it inevitably crosses the line of survivability, and even that is looking unlikely these days. These things are not the same.
Actually as a regular dumb kid, I didn't really give the whole atomic destruction threat that much attention. I assumed I'd grow up and things would work out, which they kind of did. But you're right about climate catastrophe, we can't really stop what has already grown into a huge problem. But maybe we can do more to keep it from getting even worse. Only people shouldn't do nothing on the belief that they'll never "have to grow up and face it." They will grow up, and they will have to face it and more besides.
