Er - she never said she hated doing Opera...I've read a lot of her interviews, and I don't ever recall her saying she hated performing at the Met...
Emmy-Rossum.net has most of her interviews, etc, and I just went through them, and none of them say that at all. I don't know where you're getting that from.
she recalls a particular Zeffirelli production in thich she appeared with a horse that she knew for a fact was making $150 a night, thirty times her standard five - dollar stipend. "Any time you're earning less than the livestock," she says cheerfully, "you know you're there because you love it."
from Teen Vogue...
The point is, at a time in life when many children would have been chewing over their algebra, Rossum was on the Met’s capacious stage, in Carmen or La bohème or Die Meistersinger or Turandot, “standing next to” — not behind — Placido Domingo. She laughs at the memory. “Placido used to pinch my cheeks and call me ‘bella’. Now, when he sees me walking around, he still remembers my name, though I’m sure he has no idea that I’m an actress. It’s so fantastic to me that I grew up thinking ‘Oh, Placido’, not really thinking about the weight of who he is.”
...from the Sunday Times
Rossum first appeared The Metropolitan Opera at age 7, earning $5 a day as a member of the children's chorus.
"There were horses and donkeys on stage in a lot of the productions and they were getting paid $150," she said. "So when you realize you are valued less than livestock is when you realize you are there because you love it."
...from an internet article, Fans of the Opera
Q: Did they incorporate school into their program at all?
EMMY: Hahaha, no. I was attending Spence, which was a private school here in
New York. I went there until 7th grade when they gave me an ultimatum,
because I was missing about 40 days a year of school for rehearsals. They
asked me if I thought Placido Domingo would be willing to rehearse after
school hours. Of course, I'd had to ask him but I wasn't for sure if the man
would go for that. After that, they said "Choose." And it wasn't a choice
for me. Since then, I've never ever done anything in a conventional way but
I did my high school through tutors and the Internet through Stanford
University and now I take classes at Columbia University.
...from Emmy Rossum on Phantom of the Opera
Plus, I doubt she would've chosen to leave her school for the Met if she hadn't enjoyed it there...
the only mention of solos going to boys was spoken by the Met. children's chorus director in Elle, and just Emmy saying that it was an old opera tradition.
I don't see any negativity at all...