I beg to differ. You're heart is in the right place, your mind is open, it doesn't take a leap of faith to understand. Children are VERY capable of judging others behavior. For instance, if a 4 year old wants a cookie, and says, "I WANT A COOKIE." An adult can validate that behavior by giving the child a cookie. They try it with different stuff: I want some ice cream. I want a bike. I want to watch TV. What's missing here is, of course, the word 'please'. You, as an adult, can reinforce the need for 'please' or not. If you don't demand a please, you'll never get one....this can have FAR reaching consequences in your child's life....is that how you want them to leave the nest...looking for a job, without the common decency to say please and thank you? This is a very simple example....basically, ever since kids are born, they evaluate their environment...crying when hungry, wet, tired, sick; happy and smiling when they want to play...there's a reason they do that: they've evaluated their environment and they will do the things they experimented with (crying, laughing, smiling) to get action for a problem.
Now, in terms of social interaction, it's best to deal with the issue. It's NEVER easy, as we all know. At work, my ideas can get voted down just as easy as the next person's and there's reasons, it's up to me to 1) first KNOW that there are other reasons (as the boy Alex found out) and 2) be able to process and understand those reasons...even if it hurts emotionally. To solve a conflict, we need input from all involved...whether it hurts our feelings or not, it has to be brought out into the open and dealt with...and it gets easier the more times you do it. But, if you're just starting to deal with conflict, it's TONS easier to NOT deal with it. I applaud the teacher for at least trying to deal with the issue directly. She could've just as easily sat him in a corner or out in the hall without a vote and Alex would not have learned much except he can piss off his teacher....It was MUCH more valuable information to Alex that he's pissing off his teacher AND 14 of his classmates. Keep in mind that all of this occurred BEFORE his diagnoses....that's of utmost importance to the story. It's an important lesson all the way around. We judge other people, and they judge us. You CANNOT deny this fact.
But you know what....this is all off-topic because the other children were not judging Alex...they were stating what he does that they didn't like....