You'd look less foolish if you bothered to even Google "Brad Pitt Socialism". He also claims to have been to a socialist country (None even exist in the world today!) where everything is fine.
He says, of people who use inflammatory rhetoric decrying this or that policy as 'socialism': "I guarantee you none of those people have ever been to a socialist country. I've been to a socialist country - we're fine. We're great
He's clearly saying that the U.S. is fine, not the socialist countries, and that since the U.S. is fine, the talk of socialism can be dismissed as histrionic. So he's actually being highly critical of socialism, albeit implicitly.