Patron,
I'm going to agree with you on marketing hype influences are attraction to certain types of women. I will add familiarity as well. I went to a high school that was 95% plus White. As I got older, I started dating Latin women, Asian women and Black women. I also began to appreciate thicker women. Thicker women might have issues with weight in their middle age, but I learned thicker women (but firm) could look great in their 20s/early 30. There's just somethin' about a thick girl's ass when she's bent over. If she's Latin or Black, forget about it I'm diving in.
Where I would disagree with you, is that 75% of the girls in high school were fuckable. That's an awfully high number. We tend to remember the cute girls and not remember the forgettable girls. There are a lot of forgettable girls in high school. I'm not talking about Rachael Leigh Cook as Laney Boggs in "She's All That" nerdy, artsy type of girls. That movie is total fiction. Girls like that had plenty of guys sniffing around.
Also, don't dismiss the idea that celebrity women are a standard of beauty. It's not a coincidence that singers and actresses while talented are generally very beautiful. Actresses more so because some get by with less talent and many are recruited from the modeling ranks. Where maybe what's skewing an artificial difference is celebrities' plastic surgery, but I'm seeing more and more instances of plastic surgery in the general population of young women.