Lutherans are Lutherans. They are NOT Christians. {insert any sect} Those statements are just a stupid as your statement about MOrmons.
You obviously haven’t a clue what you are on about. The issue of Mormonism being Christian or not is not a gamesaying like what YOU did. It is based on theological arguments. Are you versed on the arguments? If not, then you and others like you, CLEARLY have NO basis on which to opine.