Sam Seder and the rest of the Majority Report, TYT, Lee Camp, Chris Hedges, Richard Wolff (and the rest of Democracy at Work), Noam Chomsky, Briahna Joy Gray (Bad Faith podcast), Chapo Trap House, Jimmy Dore, The Empire Files, Rania Khalek, The Real News, Aaron Mate (formerly of The Real News), Adam Johnson, Sameera Khan, The Intercept, Glenn Greenwald (formerly of the Intercept), Jacobin, World Socialist Website, Current Affairs, the Antifada, and so on literally all criticize MSNBC and CNN regularly. I'm struggling to think of any left media I've left out of this list. But they almost certainly criticize MSNBC and CNN regularly as well! Because the way both of those news outlets operate are huge obstacles to progress for the left.