Sorry I took so long to acknowledge your comment. We were at Mass and then we visit people at the hospital. I think your analogy is rather tortured. I see where you are attempting to go, but I still can’t agree with giving credence to people I think are goofy, wether they are Mormon or otherwise.
You do know, doncha, that Mormons have 55,000 missionaries out there?...{plus another 22,500 retired "service missionaries.")
Why is that relevant? Because in many Asian and island cultures, ancestor worship or veneration is a key folk religion imbedded in those cultures.
When Mormon missionaries come along & introduce the idea of being able to "save" their ancestors via baptisms of the dead, Mormons are thereby "giving credence" to BOTH Mormons and non-Mormons -- non-Mormons who may still embrace the idea of ancestor veneration...that they can be saved.
Who cares if one little poster in the U.S. thinks the practice is "goofy?" Who cares if you & I even agree that it's "goofy?" Credence is given (especially in places like those I described). Therefore, in our world, there is such a thing as worldview accountability. There is a thing, as creating negative feedback upon worldviews that prey and pounce upon the gullible of the world.
That's part of loving people in other cultures of the world as ourselves. That's part of treating them as our neighbors.
I have a Roman Catholic Jerusalem Bible at home. May I suggest you pull it out and look at a few verses where you can discern our co-responsibility to speak out on these kinds of worldviews and the people who embrace them?
Acts 20:29-31
2 Corinthians 10:3-5
Jude 3 (this is a single verse...only one chapter in the book)
Titus 1:9-10
There's many other verses as well...see for example, the apostle Paul confronting the legalistic religious in Acts...chapters 17, 18, 19...(Apollos, too)
So you are ok with someone desecrating your mother’s grave? Say spray painting it or urinating on it? After all they are just being ‘goofy’, right?