The issue there is that we still live in a capitalist hellscape, and artists need to make money to survive. Until we have a situation where artists can make art and not worry about where their rent (yes, fuck landlords) or food, they will need to be able to make a living somehow.
On principal I agree, but have you thought about how artists are to make a living? It is already hard now, so how should they make money in the future?
You don't have to do ANYthing in order to have copyright on your images.
That is standard throughout the Berne convention & has been for decades.
Registering makes court-cases easier to win, but having copyright on one's renditions isn't in any way requiring that one have registered anything with anybody.