In regards to the media, parents could be more dismissive of the doom and gloom. Instead I watch parents repeat in front of their children that corporations are evil, sea level will rise by 10's of feet soon, racism everywhere, reverse racism everywhere, the China Communists will take over the world, that the U.S. doesn't manufacture anything, etc.
I recall one adult in my entire childhood that laughed off a doom and gloom discussion and one other that said "relax you'll be fine". It immediately paused my chronic anxiety as calm is contagious.