Then, you should be alarmed at the fact that the mormon church sends out 60,000 young men and many elderly couples EVERY YEAR to "divide" others from their Christian faith.
Have you registered your "alarm" with the leaders in Salt Lake City?
I think a simple copy of your post sent to The Corporation Of The President Of The Church Of Jesus Christ of Latter-day Saints, Temple Square, Salt Lake City, UT would reach them. Please return and report.
You should be secure in the knowledge that other churches do not send their young out on Mission.
Oh, wait, they do.
Do you find that as objectionable as the Mormons doing it? Apparently not.
If a post on FR is so "alarming" then 60,000 missionaries swarming the world yearly should also be alarming. Especially when the message carried by the 60,000 is that ONLY mormonism is the path to salvation.