I didn't say anything about spying staving off climate change. That's pretty much a done deal, at least to the extent of destroying our current civilization. We've been in free fall to that, for at least a decade.

And about nuclear war. Although I'm not expert, it seems pretty obvious that uncertainty increases the risk of war.

Sure, I hate oppression. And I'm not into oppressing others.

But the problem is all the assholes who are driven to oppress others. If I could snap my fingers, and have them all die instantly, I would. But that just ain't gonna happen.

And indeed, it's arguable that they've been selected for, since the development of agriculture and animal husbandry. I got that from Morgan's Black Man.

So anyway, I just do what I can for myself and those close to me, and what I can to help others. I don't focus so much on changing the system. Given how people are, it seems kinda pointless.

You could argue that uncertainty reduces the risk of war because you're only starting wars where you're reasonably certain that you can win. Uncertainty about your adversary's capabilities then prevents war.

Too much uncertainty can also risk war. It all depends on what you're uncertain about.

MAD doctrine is based on both sides being reasonably sure neither can get away with a first strike. There is interest in having that fact independently verifiable; spying is both providing that verification and serving as an incentive against overstating your actual capabilities.

Gives those who get a kick out of war and conflict something to do that isn't lob nukes at each other.

Same reason you want layers of government with progression at a small scale available to many. So all the people with political ambitions aren't all trying to start their own governments and revolutions.

Busy is stability.

To be fair, I don't think a search warrant is oppression if used correctly. If there was something analogous for encryption I wouldn't mind. Problem is an "encryption search warrant" likely would happen without anyone knowing about it.