There's a popular book called "Factfulness" that explores the dynamic you're describing: the world is generally getting better and the media is institutionally

There's a popular book called "Factfulness" that explores the dynamic you're describing: the world is generally getting better and the media is institutionally incapable of reporting it (because they thrive on sensation instead of facts). If you are swayed by facts and data, it's probably right up your alley.