I get what you are saying, but the Dada movement doesn't contradict what I said, it emphasizes that there was a time when doing what was considered anti-art was

I get what you are saying, but the Dada movement doesn't contradict what I said, it emphasizes that there was a time when doing what was considered anti-art was itself a message. It was a strong world wide protest among aritsts against World War I, as well as the heavily traditional train of thought around art during that era. It's still a controversial topic even today!