GS,
I'm so sorry you are surrounded by a bunch of uncaring, non-empathetic, ignorant people. No, seems like they cannot put themselves into your shoes. Don't let the jerks get you down. Can you get your son some therapy re: his feelings about his father? Even tho these women are jerks, I see this as somewhat of a wake up call re: getting your son more help if he is acting out. Maybe he needs to deal with his feelings of loss & grief. Even though he was very young when his father passed, it's still a loss for him.
Try to breath, tap, relax: You will do the right thing. Think positive. Please don't let this ruin your day or your progress. It's all a journey, step by step. Have faith & confidence in yourself & your son.