This is true. TO be fair to them, however, the Left's political leadership figured that if they mostly managed to infiltrate government bureaucracy, controlled the nation's cradle to college educational system, plus the vast majority of media outlets, and then finally the entertainment industry they COULD control enough of the people to perpetually and successfully keep their propaganda down the throat of this nation.
The universality of the Internet and the fact that they could not make their censorship of conservatives permanent was their downfall when Trump began backing up conservatives voices in simple and yet devastating and consistent truth-telling. At that point -- also when their USAID slush funding was shut down -- the back of the leftist-controlled media was snapped.