Those are the three major movements but not the only ones. For example (not all inclusive), there's also Reconstruction, Ultra-Orthodox, Liberal, and Lubavitcher Chasidim. However, the number of movements isn't the point. The point is, there is not just one unanimous movement, and within each movement there isn't unanimous agreement. In worldwide population, they are a minority number, so one wouldn't expect as many movements as larger groups have.
OK.
More people, more groups, and some are very small groups at that.
Are you starting a new topic? My post wasn't about "where the most disagreement on schools of belief lies." It's not a contest.
My post was about the fact that Christians aren't the only people who have theological differences amongst themselves. Yet, they seem to get the most postings from non-believers disputing what Christians believe. I haven't seen a spate of posts referring to the Torah and Koran as books of myths written by men, or calling Jewish and Muslim posters haters for stating their beliefs. (I certainly don't want to see that happen to them either.)