As was pointed out, there have been schisms in the Jewish community since Korach and before. A Jewish schism is more the historical norm than it is any aberration. After all, the American Jewish community itself is a schism, composed of Reform, Conservative, and Orthodox Jews.
But again, these American "Jew for/against this or that" protests are mostly organized and supported by radical Leftists and Muslims than they have anything to do with what the American Jewish community actually thinks. I'm not denying that there may be a schism. I am only saying that I wouldn't trust these fake protests to tell me that.
If you go to a 'Jews for Gaza' protest and then you go to a 'Catholics for Homosexuality' protest, you will find the same people at both. They don't care about the religion. The protesters only care about the issue.