I'm not sure how you expect me to prove my bona fides other than doxxing myself. Did you want to see my Temple Recommend? My (shrinking) bookshelf of collected books on Mormon doctrine? The letter calling me on a mission or consequent name tag? I'm a total rando on the internet, so I guess you'll have to take it on faith that I wouldn't out myself as a former cult member if a) it wasn't true or b) I didn't think there was something other people could learn from the experience.
Per Question #2, I'll have to start with a caveat: I can't claim to know what all Christians believe about Jesus. From my understanding, there are minute differences of opinion between denominations as regards points of doctrine. But there is probably more cohesion in their beliefs when you compare it to something so starkly different such as Mormonism.
I'll also add that I've had to try and flush nearly everything I believed about Jesus and the nature of God out of my head and start over from scratch. I couldn't trust anything I had learned from Mormonism. You'll see why momentarily.
To be clear, Mormonism is so much more about programming you and twisting/interpretting Bible verses to support their narrative. It was really truly difficult to know what was actually true any more (after discarding Mormonism, that is). I had to start over from scratch, literally. And ironically it was reading the Bible more intensely that helped me arrive at the conclusion that what I had been taught was complete garbage.
With that out there, here's what Mormons believe about Jesus:
- He is Jehovah of the Old Testament
- He is Satan's spirit brother (albeit the eldest - not just of Satan but all of God's children)
- He is a polygamist (Mary and Martha being just two of his known wives)
- He is the literal offspring of a god they call Elohim literally procreating with Mary ("divine sireship")
- He created the whole world, under the direction of Elohim and with the help of Adam/Michael (same person to them)
- After dying, he came to the Americas to teach a lost tribe of Jews.
- Despite forgiving the Romans for crucifying Him and pardoning sinners on the cross, Jesus wiped out literally half the population of American Jews because they should have known better than to go being naughty. This is all in the Book of Mormon.
- He called 12 disciples in America from among the ancient Jews, gave them "priesthood power", then zipped off to visit other lost tribes.
- He visited Joseph Smith (along with his doppleganger, Elohim), told him all other denominations of Christianity were false and wicked, and promised to restore the same church He established in Jerusalem.
- He appeared periodically to Joseph Smith to reveal new truths and grant new powers.
- He told Joseph that the New Jerusalem will be in Jackson County, Missouri.
- His death and resurrection solve for physical death (all men will be resurrected as a consequence), but heaven or hell is actually more of a works-based scenario ("by grace ye are saved, after all ye can do").
- He needs an enormous hedge fund to sponsor his Second Coming.
- He still leads the Mormon church by talking directly to the Prophet of the church and the (oddly) 14 other apostles.
Whew, well, there's a starter course. Jesus, albeit the most important factor in Christianity, is only the tip of the iceberg as regards abnormalities in belief and practice.