Many anthropological and archaeological studies indicate that in simple agricultural societies with no political frameworks beyond village and tribe, human violence was responsible for about 15 per cent of deaths, including 25 per cent of male deaths.
So this is a good point. What problem did humans seek to solve with agriculture? Stability, perhaps. Knowing where their next meal was coming from. Controlling the output of their crops.
But solutions sometimes create problems. Often these problems have to be solved before we can reap the full benefits. So political structure, institutions had to be created. And those things came with their own problems, seeking their own solutions. And so on and so forth.
Progress isn’t made by giving up on when a solution causes more problems, but by continually creating new solutions for new problems. That has been the trajectory of history. Sapiens settling in one place wasn’t a bad thing for society’s growth, but we had to figure out how to do it and how to implement it in a way to maximize its benefits. We are still going through this process.