I'd love to know how many of those on this thread that are criticising the OP have actually had their children attend a 'rough' school?
I'm with the OP on this one (though perhaps wouldn't have chosen quite such language to describe things - well, not in public anyway!).
My DD used to go to an inner London primary school in a deprived area. She was there for 18 months, from Reception. Now, the teachers were good, but, ultimately, the parents of a lot of the children were just awful. DD would come home to tell me "X's mummy punched Y's mummy in the corridor outside the classroom today" . There was a mother there who shaved all her children's hair since they had headlice - she was an alcoholic who couldn't be bothered to treat the nits. I'd cringe when I'd see her hollering at her children, who had no warm clothes in winter, no shoes that fitted.
Other parents sent their children to school with cold Happy Meals in their lunchboxes.
Now, I'm all for diversity, but that, to me, was ridiculous. Yes, there were a few nice parents, but the majority were not the kind of people I'd want to get to know. Many looked like they'd stepped straight off Jeremy Kyle. I had nothing in common with them (apart from a couple who I still keep in touch with).
So, we moved house and schools and the one that DD is at now is lovely. She has great friends, so do I.
So, YANBU. Is there any chance that your DS could go onto the waiting list of another school?