I think what is different for @Navidadis that for a large part of Christianity, what denomination you worship with and find a church home with is not really significant so long as they have the "essential" doctrine correct. Thus moving from Methodist, to Baptist, to Lutheran and so on is quite fine. But as you note in the bolded item above, if The Church of Jesus Christ of Latter-day Saints is what it claims, it then holds some exclusive items that is not transferred to other denominations.