Despite what we hear in the media, the world has gotten so much better in many ways in the last couple of hundred years. That's not to say there aren't big issues, or no things that have gotten worse, but there's a clear and very strong overall trend.

See for example

The Better Angels of Our Nature: A History of Violence and Humanity, by Steven Pinker https://www.amazon.com/Better-Angels-Our-Nature-Violence/dp/...

Or the first chapter of Utopia for Realists: How We Can Build the Ideal World, by Rutger Bregman https://www.amazon.com/Utopia-Realists-Build-Ideal-World/dp/...