There is a giant difference between painting an image by hand versus applying a cheezy oil paint filter to a photograph.
I've seen professional landscape photographers do gallery shows where prints were output to types of canvas and either framed or just pulled and stapled over wood stretcher bars. But they weren't applying pretentious paint-like filters to their work.
Most professional painters in the fine arts scene and professional illustrators who draw and paint by hand do various things to the imagery that cannot be created in a camera, much less some $15 photo filter. They get away from photo-realism using a wide variety of approaches.
Computers are growing ever faster and more powerful. But they're still hamstrung in a bunch of areas, such as being able to understand the sorts of abstract factors that go into artistic creativity. A bunch of that has more to do with gut feeling than math. Even simple visual problems will elude computers. Photoshop has been around for over 30 years and it still can't create a proper 3D chisel effect on letters without bowling out all the corners. It takes human decision to know how to treat the corners and letter joins. That's what makes it easy to tell the difference between a
sign with hand-carved prismatic letters versus something made automatic on a routing table. The notion of a
computer making a piece of fine art from scratch is a whole other quantum realm.
However, there is one thing that will make artists and painters obsolete in the future. Artists and painters will be gone if no one wants to buy any of their work. If the stuff they produce has no value then they'll be out of business.