What would you like your dog to do? Sit there calmly while allowing the other dogs to bark, snarl and bite her?
If you are not going to protect her, she has to do it herself (and then get unfairly blamed for protecting herself).
Your dog is not at fault. It's the humans and the little dogs. Change what's at fault and you'll have peace. Otherwise, don't bring your dog there to get traumatized and blamed for protecting herself.
When I experience this, I either get my dog out of that situation or shield my dog from the incoming dogs and shoo them away.
If your mom brings you to visit a friend where the friend's kids keep bullying you - what would you like your mom to do?