Well said. Well said.
I think that people have a stronger connection with images that they find repellent than they do with images that they find beautiful. I hate to trot out the obvious example, but I took an art history class recently, and there was HEATED debate among students over the artistic merit of Chronos Devouring His Children by Francisco Goya. The students who hated the painting wanted to establish that it was objectively bad, and the students who loved it (myself included) were frustrated that they did not feel that it was objectively good.
In a later session of the class, we were reviewing "beautiful" works by John Constable, and I remarked that I didn't like them. The closest thing I received to controversy was a grunt of, "I guess you're entitled to your opinion" and a shrug.
I don't think that people really care about a beautiful work. Its lovers feel that it can stand on its own, and its detractors aren't gravely offended by it. With ugly art, the people who like it feel the need to defend it, and the people who hate it don't want to have to see it.
That's how I feel.