There are many, many, many forms of artistic creativity. A hard-core scientist is as much an artist as any paint-dauber. So is a master tool and die maker.
Picasso's work is simply ugly. And the fools who have an elephant crap on a canvas, hang the canvas on the wall, and call it "art" are idiots.
Picasso had many moods and styles in his long life. You are all focusing on cubism which you do not understand. It was a positive reaction to certain artists who created 3-D images in order to explore objects from different angles and points of view.
Picasso was classically trained and produced many naturalistic paintings that would make nice birthday cards if you looked through his entire portfolio. In fact, I have on my wall one from his rose period of a little Spanish boy. By the way, Rembrandt and the Impressionists also were told they were hapless painters in their time. In the late 19th and early 20th century, riots would break out over new styles in painting. And not just by ill-educated ordinary people but by the educated art connoisseurs and patrons. Again, the dog barks but the caravan moves on.