What is it about people's behaviour towards my autistic son?

I used to work with teens who have autism, it all boils down to people being afraid of difference and things they don't understand.so many people have decided that it isn't worthwhile to learn anything new about other people so they judge instead. My view, those who think like that are no concern to me, they have chosen what type of people to become and they have to live with their sour dispositions, not me.