People have been worrying and complaining about all those things for...well, forever. Roman writers raged about corrupt senators, the cost of bread, the rampant crime. So did Samuel Pepys. Twas ever thus.
We are incredibly lucky in so many ways. For a start, pretty much every generation before this one lived under the shadow of war. Today, a global war seems very unlikely. Russia hasn't the power. And the Chinese don't want a showdown with the USA (especially since much of the world would side with America). As for a war in Europe, that's unthinkable.
Also, don't overlook technological progress. Who knows what miracles we'll invent in the coming decades – drugs that slow (or even reverse) ageing, cancer cures, glorious virtual worlds, mood-enhancing drugs, lab grown meat, nanotech.
For me, the two big worries are global warming and birth rates. The world is ridiculously overcrowded. In fact, the explosion in the world's birth rate has been the biggest disaster of the last 200 years. Thankfully, it is declining in most places. The exception is Africa, which has the highest birth rate in the world. In fact, Africa's birth rate is so high that the population is going to double by 2050. When global warming gets worse, that booming young population is going to head for Europe, massively destabilizing the continent. People in the developed world need to stop being so greedy and selfish, and people in Africa need to stop having so many children.
The things you describe ARE problems, but seen from a God's eye view they're petty. I was a child in the 1980s and remember vicious criminals beating up old women. I remember people complaining about sleazy politicians (jesus, Boris Johnson only had a few glasses of wine with work colleagues ffs). Stephen Pinker is right – if you could choose to live at any time in human history, you'd choose now. Believe it or not, we're probably living in a golden age!