Inept analogy, at best. Mormons prosletyze, but so do Christians. Jews dont prosletyze, and Jews for Jesus prosletyze only Jews.
Lots of folks out there have Jewish ancestors and that makes America a fertile field for them.
BTW, I'd rather listen to a recorded sermon by Meier Schneersen every day than a speech by the Hildabest for 1 minute over the course of my life.