This has been going on since the mid-1060s... Before that most films and TV series stayed away from politics and supported patriotism.
Re: "In my opinion, their plan will work"
It has! When the media found they could lose us a war they didn't like and bring down a President they didn't like... They just poured it on! And will keep on pouring it on...
And the way things look, they will win in the end unless we Conservatives get out and set up films and TV series reflecting our views!
It will never happen. Conservatives have far too much common sense to get involved in show business.