I think there absolutely would be enough if they also covered international stories as well as happier news. There's a whole lot more good going on in the world right now than bad, but for some reason we do not highlight it.
> There's a whole lot more good going on in the world right now than bad,
I have no clue how you could ever even estimate this sort of ratio. How do you even quantify the "number of things going on", let alone confidently split them into good and bad?
I think that a lot of the issue might be that the "good" is often irrelevant to the user. E.g. Great news! Scientists discover new drug for treating cancer (in mice).
"For some reason" is that people do not watch it.
Once you get a taste of "bad" it dominates.