Every generation of every society has had an ideal of what a beautiful woman should look like. And a beautiful man too. We shouldn't stop saying that some people are beautiful, because that would be utterly artificial - we all make that judgement, whether it's on a person, a house or a car.
What we could change would be fashion. And the fashion business is 100% female-led. My own take on it is that the fashion for ultra-thin, ultra-stylised women is *created* by women, the women at the top of the fashion business and the women's publishing business. Unless someone's obviously overweight, men really don't care, but women (and especially girls) go bulemic because they're trying to live up to what some advertising idiot has published, and that advertising idiot is invariably female in this context. It's corsets and bustles, all over again.
I'm sorry, but if women stopped buying into that fashion crap, they'd be a lot healthier (mentally and physically). I have huge sympathy for the poor girls who get sucked into this, but I have no sympathy for women as a whole perpetuating it. And if you buy any magazine with "...Woman" or "Women's..." in the title, you're probably one of those contributing to the situation.
Men suffer similar problems from all those magazines showing hugely muscular/defined bodybuilders, which is what causes teenage steroid abuse. Same thing again - if men stopped promoting that (WWF et al) then young men would be healthier. But muscle-mass is hard to grow whereas it's obvious that anyone can starve themselves thin, so maybe that's the difference there.