I wouldn't blame it all on Jews. White trash Americans can be more rabidly pro-circ than educated Jews who sometimes go for the Bris-Shalom (no cutting). But I hear what you're saying. I wonder if some of those girls were saying they prefer circumcised because that's what they've heard American girls say on TV but they don't actually know the difference.
And yeah, a lot of Australian teenagers and and young adults (early 20s) actually sound like they have a Califronian accent to me. Since that's where most of the TV and movies are made and all they do is watch TV and text message that's the accent they're developing.