I honor the memory of her brave son. It's too bad she's letting her personal agenda keep her from doing the same. You don't honor a fallen warrior by saying he died for nothing.
I am very sorry for her loss but instead of protesting she should honor his memory by helping our soldiers. Give them supplies and stuff they need - organize ways to get stuff to them to make them feel good. Encourage them, show them they are loved and supported here. She is doing the total opposite and is helping the enemy!