This guy has never sat through a marketing meeting in his life, I suspect. He thinks that it's the networks and the ad agencies that are driving this? It's the advertisers and their marketing people, who are relentlessly data-driven, looking at the ROI for every marketing dollar. Ad agencies execute the brief from the client, including target demographics, and come up with a bunch of ideas, hoping the client likes one of them. Networks program to maximize the revenue from those advertisers.
An advertiser's goal is to make people unhappy with what they have. People consumed by envy, Democrats, are putty in their hands. The Democrat base is TV advertizing gold.