Not true.
Stand your ground laws let me defend myself if I believe I am under imminent threat.
And as a Jewish person, I am under imminent threat from Nazis.
Therefore, Stand Your Ground would apply to me killing a Nazi in self-defense.
Stand your ground laws only apply to a person actually threatening you with statements or actions.
A person is not threatening you just because he is a Nazi. You are saying you can kill somebody because you believe his political views are threatening to you.
A threat has to be a statement like "I am going to kill you" and it has to be shown to be serious and he is capable of doing it.
A guy was convicted for threatening the president for calling President Obama racial slurs and saying "he is going to take a 45 to the head." His conviction was overturned because he did not say he was going to kill him.