I think blogs are only really good for showcasing your development of projects. As informational portals, they probably won't last much longer. Look at the alternatives barrier to entry : Chatgpt, its free, and even paid gives you super amount of usage, so why would you go to joe bloggs (used to have the jeans! lol) web site now? Are they an authority compared to ai? probably not. They MIGHT be though, but their expertise will be assimilated like the Borg into "the machine" and you'll at best maybe get a credit link. Not a bad thing though. Of course it depends what your site is about and how you position yourself.
You can pivot into different mediums and compliment a website or blog with other things such as games, and ebooks. People still read text. You just have to be aware, many people that used to be potential visitors, are now going straight to ai.
In terms of a website earning, you're only goal should be "How can I build a site that gets traffic?" Most of the time, its only experts in their subject that get such traffic. As noobs are trying topics they aren't experts in.
They read 5 articles, and now they think thats enough to start a blog with their own ai articles and make money, lol. Don't let that be you! What do you have experience with in terms of years with in life so far?