Is that why you say he is "Muslim born"?
Correct. As i wrote upthread, his father was Muslim. According to Islamic law, if your father is a Muslim, you are a Muslim.
I also wrote above that i fully understand why he did what he did, because as a Muslim, of course he should rather be a friend of Muslims rather than Jews.
My only issue was, that why pretend to be a friend of Israel and Jews for nearly 8 years, and then stick it to them. You need to be honest.