We have the means to stop the catastrophe. We don't need more solutions, just to comprehend that our behavior is destroying our ecosystems and pick the right solutions for the right behavior. We just need to act on it.
Also, no one pretended that violence can be annihilated when we collectively decided to swallow that killing one another is not a right and we outlaw it (except in some context that is defined by laws and treaties).
Ah, I see you have not read the book. No no my friend, we are not all there yet.
Some things are easy like energy production (mixed sources including nuclear) and transportation (batteries and electrofuels, though the latter is still too expensive for poorer countries so we'll need to improve those even if we technically could do it). But for example steel and concrete, things we need insane amounts of to house a few more billion people until 2100 and to build those nuclear/wind/etc facilities with, we don't really have solutions for those yet. I would recommend checking out the book.
Also, no one pretended that violence can be annihilated when we collectively decided to swallow that killing one another is not a right and we outlaw it (except in some context that is defined by laws and treaties).