Most Jewish people are pro Israel and amongst those who are most religious or Orthodox most rises to an overwhelming majority.

This isn't pretending an ethic group has negative characteristics from a stereotype this is acknowledging an actual view most in a group have.

Most Americans are pro Christianity. Even if you view Christianity negatively it's ok to say Americans are infatuated with the trappings if not the actual virtues of Christianity because it's true even if this isn't true of every single one of us.

To my understanding Jew is not perjorative but could be in context eg if offense is obviously intended or if mention of ethnicity or religion is otherwise irrelevant.