Picasso might agree with you.
“Picasso said after viewing the Paleolithic bull paintings.
What he was reputed to say was “After Altamira, all is decadence.” Altamira was the first major discovery of paleolithic cave painting, found in northern Spain in the 1880s.”
Among artists active in the 20th century, I really only like a few — the realistic painters (and some of the PRB-associated painters) at the very beginning of the century, the relative handful of realistic and pin-up painters, and Salvador Dali. :’)
Before the fall when they wrote it on the wall
When there wasn't even any Hollywood
They heard the call
And they wrote it on the wall
For you and me we understood
Steely Dan - The Caves of Altimira