Well maybe the dog needs to be put down for the betterment of society. Aggressiveness in a golden is very much against the expectation of the breed. What if a child expecting a friendly golden in the future gets mauled? If you knowingly give away a dog that is aggressive are you not just as responsible if that dog eats some other persons baby?

It is a very hard question to ask yourself and quite a moral quandary to wrestle with, just as your re-homing question is. I can see the argument on all sides of the issue, and there really isn't a right answer. Only other people will judge you, since none of the options are illegal.