Actually, it's a matter of the messenger being remotely Christ-like in their conduct.
In other words, presentation (conduct/the way the message is being delivered), not message (what he's actually saying; as though Mormons aren't constantly saying that Christianity is wrong...
that's the entire reason your religion exists, since non-LDS churches are victims of the 'great apostasy', remember?). That's just what I said in the post you quoted in your reply.
Again, you want an exception because you're nicer about a message that is just as offensive, and I can understand why (I've certainly had more pleasant conversations with LDS -- including missionaries -- than I have had with any street preacher), but I'm just pointing out that I see that that's what you're doing, and I don't find it acceptable. It seems like you're trying to pretend like you're somehow different than this guy because you dress nicer and bother people at home instead of when they're at a public pageant, but since nice conduct does not cover heresy, and the LDS belief in the great apostasy remains no matter how nice you are about it, it's profoundly unconvincing and strikes me as incredibly self-serving and naive.
Sorry to have to phrase it this way in a thread when I have had some genuinely pleasant conversations with one of your coreligionists (proving not only is it possible to do so, it actually does happen), but since you're making your own subjective view of what is "Christ-like behavior" to be the determiner of how you'll evaluate a person's message (i.e., as 'flaming' when others do it, or what you have called 'theological disagreement' when your fellow LDS are doing it), then an obvious response from a Christian could be that as Jesus Christ Himself told us that it would be better that one who causes the little ones to stumble be thrown into the sea with a millstone around their neck (Mark 9:42), and Mormonism
does cause the little ones (and the adults) to stumble in their search for the true Christ (given that it is not Christianity in the first place, but presents itself that way so as to ensnare the gullible who are searching for Him),
it would be better that Mormon missionaries visit the local seaside with millstones in tow than continue to bother people at home with their soul-destroying, anti-Christ blasphemies.
Now that statement is as subjective and offensive as you can get. The point is that
I'm admitting that it is, and not pretending as though one person's idea of what 'Christ-like behavior' is ought to determine what other people can say and how they can say it. After all, while I wrote that statement in purposely extreme terms to prove a point (NB: I don't believe that Mormon missionaries should be drowned in the sea! Christ gives us this as a warning, not a command), I
would say that the things that Mormonism preaches about Christ are anti-Christ, and in so far as that is purely 'theological disagreement' (which it is; I'm not yelling it at you through a bullhorn right now), by your standard there is nothing 'un-Christlike' about saying it. I would further add that, as I don't believe that Christ would bless those who deliver false doctrines to the people in His name (remember, not all who call upon Him "Lord! Lord!" will be recognized by Him), there can be no truly 'Christ-like' behaviors from those who affirm Mormonism's doctrines that so deprive its believers from the true Christ.
In other words, you may say that the preacher's conduct is 'not Christ-like', and I may even agree depending on what you mean by that (after all, I have been consistent in this thread in saying that he's going about spreading his message in a way that I think is improper), but on an even deeper level -- on a level that matters beyond whether or not we personally agree with
the way that something is presented -- Mormonism is
much more un-Christlike and un-Christian than the man in the video could ever hope to be. For all we know, Arius was the nicest person around (I doubt it, but really who knows). That didn't stop St. Nicholas of Myra (the original Santa Claus!) from punching him in the face, which Christian tradition has pretty much granted is at least
understandable, given the danger that his heresy (which Mormonism subscribes to by treating Christ as a created being, by the way) presented to the true Christian faith. Remember that Christ Himself was not all rainbows and "hey, everyone teach and do whatever you want", either. As a popular meme puts it: