Bani Israel and Christians

I know that all Jews are Bani Israel but not all Bani Israel are Jews. Are Christians Bani Israel as well, do they descend from Prophet Israel (AS)? This is not a duplicate, the answer to this question is not in any of the other articles, I want to know if Christians are also Bani Israel, I'm not asking about the difference between Jews and Bani Israel. Just please answer this question it's not a duplicate