Why did Picasso become the most hated artist in Nazi Germany?

Because of Picasso's paintings and words and deeds, he became the most hated artist in Nazi Germany, and his words and deeds were monitored by the secret police. However, due to Picasso's international reputation, the Nazis dared not persecute Picasso, but hypocritically invited him to visit Germany, claiming to supply him with extra food and coal at preferential prices. Picasso sharply rebuked the invaders: "Spaniards will never feel cold." I will never betray my motherland. "