They are a threat to the whole world, as is any other bible, talmud, or quran reading and following group. And, the more they abide by one or more of these filthy documents that are all meant to enslave the whole world with black magic, the worse they are. The cat licks are also a potential threat, as are the protestant denominations. Judaism and islam are also dangerous.
To the extent they prepare a people for Noahide Law (and not so much Sharia Law, which is still quite horrible though not quite as dangerous as Noahide Law), these communist doctrines are a threat to our long-term existence. You want the whole world to be enslaved? Just keep following that bible (or other above listed documents), and you will probably get your wish.
Why Noahide Law? It is more deceptive. Sharia Law, as horrible as it is, is right in your face. With Noahide Law, it seems harmless enough at first. Then, once you realize that "worshiping idols" means connecting to any sort of energy aside joke-hova, you see for yourself just how horrible it really is. You will enjoy nothing, own nothing, and work all day long for nothing. And that's what the point of the whole bible is--to bring in such a world using our psychic powers. And yes, even though the jokehovians don't abide by their bible so much, they do tie in to it and spread that cancer far and wide.