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.
They aren't all dumb people, but these Hollywood celebrities do seem to wear their political views as one would wear a fashion accessary.
See also the utterly vulgar display at the Oscars which saw Michelle Obama present the award for Best Film. What the hell has the president's love interest got to do with cinema? The agenda is there and it is painfully obvious.