Kurds can be Sunni, Shia or Alevi Muslims. They can be Christians, Jewish, Zoroastrians, Yazidi, Yarsanist, Agnostic or Atheist. In political opinion they can be considered the most radical in the Middle East. Compared to neighboring groups such as Armenians, Assyrians and Arabs, they seem a veritable cornucopia of dissent. Are the Kurds really so diverse or is it a case of “Kurd” not being a useful way to talk about these different groups?
I'm not a historian and in order not to break the rules of this subreddit by replying with my opinion and not historical facts, I invite you to come over to r/Kurdistan and ask us there :)