Using an analogy, somewhere along the road we came from "your lips will look nice with this lipstick" to "I can't leave a house without a lipstick on". And raising awareness about issues is basically a marketing too. It has to be in order to make it through to you among all the other noise. It's just that this time it's not you who are not thin/tall/curvy/vibrant/... enough, it's the world that is not safe/happy/wealthy/just enough. I'm not saying that it's not true but this has a side effect that when you are overstimulated with the ads and news, it does feel like the world is going to end.

Think about what would really have to happen to purge us all, 100%. Even climate change, I don't think could do it. 90% maybe, and sure that would be a change in our world. But still not the end of it. I can't find the paper now, but we only need something like 1000 random people to survive in order to have enough genetic diversity for the species to survive. Something would have to wipe us all at once to really kill us. Otherwise, we'll just adapt and carry on.

And if not. Welp, that's a chance for the UFOs to thrive. It's not like humanity is required for the wheels to keep turning