Grace & Dogville

I've just watched Lars Von Trier's Dogville, and I'm quite puzzled by this movie.

Is it a deep dive into everyone's darkness, vice and sadism ?
Is there any sign of Antiamericanism ?
Is world's cruelty so unavoidable ?

I have to sleep on it, but at least, i'll remind something. Von trier has been very good to depict a certain kind of hypocrisy that I find quite North American (but I'd be glad to hear the opposite).

You know, this way people manage to make or say the worst insane things to you, with the very strong conviction that this is the best both for you and the others. Without taking any risk to involve oneself.

"Don't take it personally, but..."

"Grace, you know how the freight industry is..."