There is no greater vastness than that between Creator and creature.
That is an interesting way of putting it. As a father of 7 (almost 8), the vastness that existed between the creator (me) and the created (my children) could not have been greater than in the moment of their creation (conception). However, inherent in the creature was the capacity for enlargement. The vastness of separation between the creator and the creature has been shrinking since that moment of creation. One day there will be no significant separation between my children and I beyond gender, identity, experience and earthly age. If Christ
was created but now
is God, what vastness or separation remains? That, of course, is a discussion all to itself. But perhaps you can see why this difference in theology—created Savior vs. uncreated Savior—becomes to me (and, as I mentioned, to many Trinitarian Christians I know) a thing past which I can look when searching for fellow Christians.
Either Christ is the Creator or he is a mere creature, as we are.
Again, if Christ is God—which he is—whether or not he was a creature or uncreated makes little difference to me (in a philosophical sense). For other reasons it is important to me that I understand who and and what he is/was. I just don't personally see a reason to use that as a dividing line for Christian identity.
Since, as you agreed, it matters who Christ is, it would seem the most reasonable position is that Christians are to believe one or the other, and that we simply cannot call Christian all those who believe he is uncreated and those who believe he is created. One group is Christian and the other not.
I think I've made my point here, and probably don't need to repeat why I differ in my use of this aspect of a Christian's beliefs.
That some may believe such does not make it true.
True for whom? Did Jesus Christ ever use the term "Christian"? Did he spell out what it did and didn't mean? Did he apply it to some and not to others? Who, then gets to say who is Christian? To my knowledge, God has never drawn a line in the sand where the term "Christian" is concerned. Christ did, however, teach his disciples that "he that is not against us is on our part." (Mark 9:40) I'd say that's a powerful message. His disciples wanted to exclude, and Christ showed them that they were drawing the lines in the sand where they had no business doing so.
There is much error that has crept into the church; much worldly, post-modernist thinking.
I agree.
Speaking of which, if Joseph Smith was supposedly told by two personages that he should not join any church since they are all corrupt, what has changed?
**EDIT** My original response to this question was not in the context of what you asked. I misunderstood what you were asking. So I'm changing my response. You ask what has changed since that time when Christ told Joseph not to join any of the churches of his day because of the corruption of their doctrines, etc. Well a lot has changed and a lot has not changed. First off, the instruction given to Joseph not to join any church was specific to him and him alone. In other words, Christ's message was not that Joseph was to preach that people shouldn't join other churches, but he was ultimately to preach repentance and baptism in the New and Everlasting Covenant of the Restored Gospel of Jesus Christ. This has remained consistent. As a full-time missionary, I did not preach that people shouldn't join X, Y, or Z church—that is not the message of the Gospel. I did preach the same thing that Joseph was commanded to preach. Some things that
have changed are the perceptions, attitudes, opinions, and such of the mortals known as Mormons. Anyone well versed in American history knows that a general attitude of exclusiveness and divisiveness was alive and well among the sects of Christianity during the 1800s. This was not unique to Mormons, nor was it overcome by them. For the most part, all Christian groups treated those different than themselves with some degree of contempt, although this behavior was likely more observed in some regions than in others. Nor was this behavior exclusive to Christian religions. Many who professed no religion at all were just as self-centered. And yet it was, in part, this divisiveness among Christians that led Joseph to the grove in the first place! At any rate, this exclusiveness on the part of Mormons was pushed to extremes by relentless persecution. From the moment Joseph first told his vision outside his immediate circle of family and friends, he and his followers were persecuted in varying forms and degrees, culminating personally for Joseph in his death, of course. The attitude of isolation that accompanied Mormons up into the 20th century has changed. The bottom line is, we Mormons as a people have a different outlook and attitude than did the early Saints. I believe that better answers your question in the context of what followed...
Why is Mormonism trying so hard to be included among those exact same churches?
Why should we not? By doing so we are not attempting to infiltrate them, assimilate them, or impose upon them that they change their beliefs or teachings, nor is our desire for inclusion an admission that there don't actually exist differences in our views. It just seems to me that if the Samaritan was the injured Jew's neighbor (and these two certainly had volatile theological differences), while the Jews who passed him by were not, then how does it square that Mormons and Trinitarians are not all "Christians"—a man-made term and categorization—so long as their conduct truly denotes that they are?
Was Joseph Smith wrong or is the Mormon church wrong?
In my book this has zero bearing on whether or not two people—or two billion people—can accept each other as fellow Christians. I know that to many it does, but not to me. Was not the term "Christian" first uttered as an insult by those who did
not believe in Christ? Was it not intended to exclude and isolate? If we would frown upon that, are we not hypocrites if we turn around and use it to exclude others who, by all standards but a few, are like us and are "on our part"?