The real danger is in mass media’s ability to portray and sell a false normalcy.
I see 2 major dangers in the concept of Normalcy. Mass Media play a role in both of them, but we had the Catholic Church long before we had Lateen Sails to reliably deliver mail across Continents. (Not to mention Pilgrims.)
So, first we have the social pressure to vilify that which is considered Ab-normal. This starts right around Middle School, where bullies dictate what it means to "Be a man." Don't cry, show your feelings, talk to girls, because they only want to trap you in the #Friendzone...
They go hand in hand, the Normalization Disorder that forces boys (For example, there's another set of Gender Roles for girls) to suppress certain feelings, an affect manly ones, like anger, and sexual frustration.
The opposite affect is persecution of the left handed (Used to be called "Sinister," or "Fay.") or homosexual. (Still called "Fairies.") Bronies are "Gay." Basically, anything that's not considered normal in the set of {Be a man} is gay, and effeminite. Which contributes to a lot of sexually frustrated males, gay, straight, bisexual, and transvestite. Cuckholds, and sexually submissive males.
So, they hide it. The need to hide anything like that can drive Serial Killers to appear normal. Spree shooters to seek like-minded Men Going their Own Way, and Incels. Then acting out their sexual frustration with a massacre to get attention.
This is Normal. Incels, and MGTOW are normalized. "Sluts," that's abnormal. Women who enjoy sex, and seek it out with whoever they like? Like men, that's something we have to suppresses.
And yet, there's all these boys that can't get laid. I wonder why that is? You're right, the Mass Media dose escalate the situation. In fact, it already has. That's why Rape Threats to get SJW feminists to give up, and quit Vlogging on their Youtube channels.
We wouldn't want people to think that Social Justice was normal.