Why are other dogs attacking my husky?

I would have to agree that the problem with these particular two dogs is that your neighbor's dogs are dog aggressive, poorly trained and need to be restrained. You can ask your neighbor know that her dog be on her property at all times, by any means or you will have to contact the authorities.

But to answer your question as to why dogs keep attacking your dog without being able to see what actually is happening myself, I will have to rely on logic and years of experience in the rehabing of dog aggressive dogs and fearful dogs. So if like you say long hair dogs keep attacking your dog and only long hair dogs and every long hair dogs do but these dogs are like you say singling your dog out, I would have to say that this has nothing to do with long hair dogs not liking yours but rather your dog sending out signals to long hair dogs. If these long hair dogs were attacking all dogs, I would say they are dog aggressive but f they are always singling your dog out, somehow, in a way you dont see, your dog is frightful of them and that makes him an easy target.

You can work on desensitizing your dog to long hair dogs with different techniques using gradual desensitizing, rewards, games and such, having him around very friendly long hair dogs, things like that.