The Mainstream/Corporate Media, worldwide, is literally owned and, therefore, controlled by, the evil group of people who run/control this world (they whose correct political term is 'the Globalist Cabal of Oligarchs'). Which is why they don't give out the facts (re. many big subjects in life...).
Anyone in the Media (ditto medical journals; they too are controlled by the group who run the world) who tries to expose the many falsehoods disseminated by the Media risks losing a minimum of their job/career...