"In an essay published in The Free Press in August, 16-year-old Isabel Hogben described how, by the time she was in 4th grade, she had seen internet porn featuring “simulated incest, bestiality, extreme bondage, sex with unconscious women, gangbangs, sadomasochism and unthinkable physical violence.” This is not an isolated case: A French government task force on equality recently reported that as much as 90% of online pornography features “verbal, physical and sexual violence toward women.”
Playboy wasn't necessarily a beacon of feminism (although sometimes surprisingly it was) but what young people are exposed to is in an entirely different category.
And I think that's understating it. I have not read a Playboy (is it even still in print?) since I was a teenager. At that time, the pictures showed breasts and maybe some pubic hair. Even the more "hardcore" magazines that were generally available such as Penthouse and Hustler were tame compared to even the front-page thumbnails on Pornhub. There were more explicit magazines produced, but you could only get them in "adult" bookstores and if you were under 18 you could not get in, and if you were over 18 there was a certain fear/shame of possibly being seen there that kept most people away.
If you really wanted it you could get hardcore stuff of course, but it was a lot more effort and cost compared to just opening a web browser. It was not something most people had ever really seen, certainly not among young children and teens.
"Is it like the old Playboy magazine? You have essays there by the modern-day equivalent of Gore Vidal and William F. Buckley Jr.?"
Disclaimer: my parents would not have that "birds and bees" conversation with me, so they instead subscribed to Playboy & Penthouse magazines for me.