Is the Mormon belief system even more of an offense against humanity than creationism?

From what I know of Mormons, they are creationists by default but they also have additional Mormon specific beliefs like Native Americans being descendant from a tribe of Jews who somehow crossed the Atlantic over 2000 years before anybody in the Middle East or Europe developed ship building and navigation technology that could do so. Both creationist and Mormon beliefs are without a doubt, false beliefs and for people to present these beliefs to children, they are willingly harming all of humanity. But since Mormonism makes children believe the false beliefs of Christian creationism PLUS extra Mormon specific false beliefs, does this make what Mormons do worse than what Christian creationists do?