You need to get out more if you don't know what he means by sisters and brothers.
I flattered to have finally earned that comment from you
Is that supposed to be clever? None of his sisters and brothers are Jewish, so that's just a refusal to apologize.He needs to say thay he is sorry for promulgating anti-semitic propoganda and that he will educate himself to avoid repeating the same mistake in future.
And how are our actions interfering with their narrative?