Panic. It's called negativity bias. Humans evolved to process bad news or things that we interpret as dangers much more efficiently than something we interpret as good or harmless. It's an inmate survival technique. We are biologically hardwired to feed ourselves and the media realizes this and is.l leveraging it to get more views and clicks so they can sell our info to advertisers. And it's working like a charm.
Vaccines have been shown as effective in protecting against transmission. Even if infected they do an incredible job of ensuring symptoms are mild. Even if symptoms aren't mild they've been shown to have dramatic effect on likelihood of requiring hospitalization. Even if hospitalized they've shown as close to 100% effectiveness in preventing death as humanly possible. Even among this small group it is overwhelmingly those who are in their 70s and above. Multiple layers of redundancy. If you're vaccinated you have a better chance of choking on your lunch and dying than dying from covid.
I also think it's tough for people to process multiple ideas at the same time, and it's also tough for people to not think in black and white. So many face to face conversations I've listened to around Covid end up becoming a false dichotomy about whether Covid is a death sentence or completely harmless. It always falls to extremes. Ie. "Omicron is either going to be the worse than Delta or totally benign." The reality is probably in between. People just aren't wired to look in all of the gray areas, especially at dinner table conversations or around the water cooler.
There's so much nuance to all of this. Like...we simultaneously know so little about this virus, AND we also know so much more about it than we did 18 months ago. I think a lot of people have a hard time squaring these pieces of info that might almost seem contradictory at face value.
I think (at least America's) really poor public education, science literacy, and even health literacy have hurt us a lot. And the politicization of the virus has been straight up evil.