The things that we often fight over are becoming less serious problems.
Energy? Fusion is almost there, finally. Money is pouring into it because it actually looks like it's happening now. We'll see it in our lifetimes. Solar, wind, and batteries are booming everywhere. Fossil fuels are always located in some patch of land, some piece of a country, and someone could own it all or fight over it. But the new energy tech can go wherever it's needed. There's no need to fight.
Health? I think the SARS-CoV2 pandemic was a resounding success. We proved out a technology- mRNA vaccines- which can make a vaccine to any protein in days. We saved millions, maybe hundreds of millions, of lives. All the delays in rolling it out were due to safety checks and logistics. This same technology is going to be applied to cancers, possibly HIV, and who knows what's next. It's huge. And it's one of many techs that are happening today in health.
Food? In the last decade, food has become the cheapest it's ever been. Farmers are going broke because there's just too much competition- sucks for them, but wow is that great news for the rest of us. Hunger used to exist because of scarcity. Now it only exists because of greed. I think we can fight greed more easily than scarcity.
Even the prospect of nuclear war- which is at the highest risk in decades- is not as high as it's been in the past.
It's a bit like looking at the economy for the last 6 months and saying "My god, it's the end of economics!" while ignoring the previous 12 years of boom.