Not voting, because so much plays into a fear aggressive dogs behavior.
I have a female that was aggressive beginning around 6 mos old. She needs management daily because she acts like a bully. If she were with a family that didn't want to deal with her temperament, she may have been dumped or PTS because certain people won't step up and take charge when necessary.
I do believe her aggression is fear based, though she really does love to be dominant to others, whether it is a dog, or human. So we keep her managed. Sometimes it is as simple as a ball in her mouth so she won't bite the other dogs. She knows that and grabs one when they head out to run and play.
Maturity helps as well as exercises to improve confidence. I do believe FA can be overcome or managed but the dog is still what it is genetically.