This kind of talk isn't really useful and is making the problem worse. Where are you getting all this from? You must have some good sources to make claims like this.

There wasn't a time line 25 years ago where we could use only technological solutions as said technological solutions didn't exist. Those have only been invented since then, many still haven't been invented or are still being worked on now. Take batteries for example, it took us until the 2010s to manufacture enough lithium ion batteries with the right chemistry to even think about using them as grid storage. Said batteries still have limited lifespans and manufacturing them is costly to the environment and requires lithium which has a limited supply. We really need Sodium ion batteries but those are only ramping production now. Starting to switch over 50 years ago would have been even more impossible, not that we understood the problem fully 50 years ago. This is all revising history.

Fyi CO2 levels have been higher in the past than they are now. None of this is actually new, it's just changing far faster than it would naturally. It's the speed that's the issue, not the actual magnitude of the change. It's a case of changing things faster than nature takes to adapt. We are still technically in an ice age after all. Pollutants like microplastics and forever chemicals are the new thing, not greenhouse gasses. No one has any idea what that might lead to in the long term.

You feel insane because your suggesting things should have happened before they are actually possible. You are saying things that are extremely alarmist without giving evidence and without considering context.

Edit: There was one way to decarbonize earlier than 25 years ago or maybe before. It's called Nuclear. I wonder who prevented that? Oh wait it was climate activists. Funny that.