If Avraham Avinu was sort of a Ger does that mean that his parents were not really considered parents?
Also when Pinchas killed Zimri it was an act of Kana’us and as far as I remember he did not ask Moshe Rabeinu (I think according to some, if he would have asked he would have been told no but because he got up and did it as an act of Kana’us to H-m, it was the right thing to do) so in that case, would someone in our generation be allowed to kill someone?
I don’t think bringing A”A as an example applies here.