Really?
From the article:
As a refugee from World War II, he was very grateful to his adopted country. He grew up with a lot of people in Eastern Europe who would have been happy to change places with him.
There are still a lot of people in the world who would envy him the life he lived. He wanted to make a statement about how much it meant to him to be an American citizen.
I'm inclined to just say 'thank you' for the generosity.