Well for starters i would suggest you read "Primetime Propaganda" by Ben Shapiro. He went around before being known nationally as a conservative interviewing people in the media and Hollywood, presenting himself as Ben (((Shapiro))) who graduated from (((Harvard Law School))) and making profiles on the biggest names in (((Hollywood and Media))) about their impact on social justice and diversity in America
Obviously everyone assumed that he was hardcore left so they spoke with him frankly and all those huge players and directors admitted that they were blacklisting conservative actors, were pushing a progressive message, that they were trying to shape the political process through culture, that they were specifically targeting teenagers and young adults in order to shape their minds etc
There's a whole part with people on record talking about how they were adding gay characters to all the shows they could in a push toward legalizing gay marriage and how they felt they were reason why views changed over 20 years and it was their success etc
There is absolutely no doubt that the extremely progressive and far-lefties are in control of pop culture and that this had a bigger impact than ANYTHING when it comes to shaping minds in the world. People are not marathoning 20 hours of C-Span but they sure are doing that with to shows. I mean just look at the number of celebrities who are shilling hard for Hillary and raising money for her and shit
Problem is that the alt-right takes this phenomenon that is very real and just go "it's da (((JOOOOOOOOOS)))" so everyone just tunes out and ignores it.