I don't care who you are, that's funny. It seems an appropriate response for such an inappropriate and entitled request to take on of their pieces (one of the most valuable of the collection) out of public display for Trump's personal residence. This isn't a piece from the national gallery, the Guggenheim's collection is either owned by their own foundation or on loan from private owners. Also, the Guggenheim is not federally funded. Most of their funding comes from their own foundation and private donors.
I don't even think Obama was that audacious.