How does this argument not also apply to photography? A modern camera is a computer, you fiddle with the settings, press a button and it automatically makes a picture for you. People produce billions of shitty photographs a day which aren't art, but that doesn't mean someone working in photography as a medium can't be an artist.
In my experience it's only non-artists who make this argument, because in their heads they're comparing AI to painting. But for visual artists there are tons of mediums and disciplines where you don't physically make the marks yourself and it's the concept and composition that's important.
There was an exhibition of AI generated art at the big local gallery here last year and I expected artist friends to be against it, but they were just like "oh, that's interesting". They just see AI generation as another way of creating an image and whether a particular image is or isn't art depends on the intention not the process.
Of course bitcoin is a scam. It's a "currency" you can't spend anywhere. It's only purpose is a pump and dump scheme for early adopters.