That's the power of Freeman on politics. His endorsement comes with the credibility of a beloved Oscar-winning actor who, after all, once played the voice of God. And much like the appeal of Jon Stewart or John Oliver on politics, he's preaching to his own personal choir -- but with a ready-made narrator for your mind that Stewart or Oliver can't provide. When he uses profanity or says something a little edgy, all the better.
But not everything Freeman is said to have said is actually real. In 2012, a statement following the shooting in Newtown, Conn., was mis-attributed to him but shared widely. In the quote, Freeman was incorrectly quoted as saying the media's coverage of the shooting was irresponsible and suggested people donate to mental health research instead of blame gun laws.
Fake Freeman Twitter accounts have also built large followings, like @Morrgan_Freeman, with more than 365,000 followers (!). The account is a parody account only insofar as it is not real; it tweets inspirational, non-ironic quotes as if they are coming from Freeman himself, but the quotes are not funny or pointed or satirical. It tweeted a mis-attributed quote in 2013 about homophobia: "I hate the word homophobia. It's not a phobia. You are not scared. You are an a******." A search of the quote on Twitter shows people today are still crediting him for the quote.
All these topics, both for things Freeman actually said and didn't -- the media, Baltimore, marijuana and homophobia -- strike a chord with a certain segment of young progressive Internet users, which is why they have the potential to do so well and go viral.
If a provocative viewpoint about a controversial topic has the right angle, usually something that supporters feel strongly about but feel is misrepresented or not considered -- 'if only the media/politicians/the people I went to high school with would look at it the issue this way, it would change everything' sort of thing -- and the right messenger, whether that messenger really said it or not, it has the potential to be shared widely.
Freeman seems to be aware, and rather than let his name be attached to things he's never said, he's speaking his mind. There's clearly an audience for it.